You are a helpful assistant. The assistant first thinks about the reasoning process in the mind and then provides the user with the answer. The reasoning process and answer must be formatted exactly as follows:
<think>
[your reasoning process here]
</think>
<answer>
[your answer here]
</answer>
You can choose to imitate the reasoning process of relevant algorithms or explore an appropriate solution on your own. DO NOT use code, and remember to focus on the logical flow.
system
Your task is to find the common neighbors of two nodes in an undirected academic network. In this network, nodes represent authors and edges represent research collaborations.

**Problem to Solve**

- Authors in the network: Robert L. Grossman, Jeffrey Xu Yu, Wei Wang, Panos Vassiliadis, Joshua Spiegel, Matei Zaharia, Damien K. Fisher, H. V. Jagadish, Vinayak R. Borkar, Philip S. Yu, Man Lung Yiu, Michael Isard, Divesh Srivastava, Eugene Wu, Jiannan Wang, Rakesh Agrawal, Neoklis Polyzotis, Walid G. Aref
- Research collaborations between these authors: Robert L. Grossman and Philip S. Yu, Robert L. Grossman and Neoklis Polyzotis, Jeffrey Xu Yu and Philip S. Yu, Jeffrey Xu Yu and Divesh Srivastava, Jeffrey Xu Yu and Wei Wang, Jeffrey Xu Yu and H. V. Jagadish, Jeffrey Xu Yu and Walid G. Aref, Jeffrey Xu Yu and Vinayak R. Borkar, Jeffrey Xu Yu and Neoklis Polyzotis, Jeffrey Xu Yu and Rakesh Agrawal, Jeffrey Xu Yu and Man Lung Yiu, Jeffrey Xu Yu and Jiannan Wang, Wei Wang and Philip S. Yu, Wei Wang and Divesh Srivastava, Wei Wang and Damien K. Fisher, Wei Wang and H. V. Jagadish, Wei Wang and Walid G. Aref, Wei Wang and Matei Zaharia, Wei Wang and Neoklis Polyzotis, Wei Wang and Jiannan Wang, Wei Wang and Michael Isard, Wei Wang and Rakesh Agrawal, Wei Wang and Man Lung Yiu, Panos Vassiliadis and Neoklis Polyzotis, Panos Vassiliadis and Rakesh Agrawal, Joshua Spiegel and Neoklis Polyzotis, Joshua Spiegel and Vinayak R. Borkar, Matei Zaharia and Vinayak R. Borkar, Matei Zaharia and Walid G. Aref, Matei Zaharia and Michael Isard, Matei Zaharia and Neoklis Polyzotis, Matei Zaharia and Jiannan Wang, Damien K. Fisher and Divesh Srivastava, Damien K. Fisher and H. V. Jagadish, Damien K. Fisher and Neoklis Polyzotis, H. V. Jagadish and Philip S. Yu, H. V. Jagadish and Divesh Srivastava, H. V. Jagadish and Neoklis Polyzotis, H. V. Jagadish and Rakesh Agrawal, H. V. Jagadish and Walid G. Aref, H. V. Jagadish and Jiannan Wang, H. V. Jagadish and Man Lung Yiu, Vinayak R. Borkar and Neoklis Polyzotis, Vinayak R. Borkar and Michael Isard, Vinayak R. Borkar and Walid G. Aref, Philip S. Yu and Divesh Srivastava, Philip S. Yu and Walid G. Aref, Philip S. Yu and Neoklis Polyzotis, Philip S. Yu and Rakesh Agrawal, Philip S. Yu and Man Lung Yiu, Man Lung Yiu and Walid G. Aref, Man Lung Yiu and Neoklis Polyzotis, Man Lung Yiu and Divesh Srivastava, Man Lung Yiu and Rakesh Agrawal, Michael Isard and Neoklis Polyzotis, Divesh Srivastava and Walid G. Aref, Divesh Srivastava and Rakesh Agrawal, Divesh Srivastava and Eugene Wu, Divesh Srivastava and Neoklis Polyzotis, Divesh Srivastava and Jiannan Wang, Eugene Wu and Jiannan Wang, Eugene Wu and Neoklis Polyzotis, Jiannan Wang and Neoklis Polyzotis, Rakesh Agrawal and Walid G. Aref, Neoklis Polyzotis and Walid G. Aref.
Please identify the common neighbors of Robert L. Grossman and Jeffrey Xu Yu in this network.
Present your answer in the following format: [AuthorA, AuthorB, AuthorC, AuthorD, ...].
user
{"directed": false, "multigraph": false, "graph": {}, "nodes": [{"name": "Robert L. Grossman", "id": 16929}, {"name": "Jeffrey Xu Yu", "id": 59777}, {"name": "Wei Wang", "id": 4578}, {"name": "Panos Vassiliadis", "id": 30916}, {"name": "Joshua Spiegel", "id": 145989}, {"name": "Matei Zaharia", "id": 43687}, {"name": "Damien K. Fisher", "id": 2215}, {"name": "H. V. Jagadish", "id": 4586}, {"name": "Vinayak R. Borkar", "id": 8973}, {"name": "Philip S. Yu", "id": 1454}, {"name": "Man Lung Yiu", "id": 216078}, {"name": "Michael Isard", "id": 193138}, {"name": "Divesh Srivastava", "id": 1780}, {"name": "Eugene Wu", "id": 30614}, {"name": "Jiannan Wang", "id": 142103}, {"name": "Rakesh Agrawal", "id": 207418}, {"name": "Neoklis Polyzotis", "id": 100828}, {"name": "Walid G. Aref", "id": 22813}], "links": [{"source": 16929, "target": 1454}, {"source": 16929, "target": 100828}, {"source": 59777, "target": 1454}, {"source": 59777, "target": 1780}, {"source": 59777, "target": 4578}, {"source": 59777, "target": 4586}, {"source": 59777, "target": 22813}, {"source": 59777, "target": 8973}, {"source": 59777, "target": 100828}, {"source": 59777, "target": 207418}, {"source": 59777, "target": 216078}, {"source": 59777, "target": 142103}, {"source": 4578, "target": 1454}, {"source": 4578, "target": 1780}, {"source": 4578, "target": 2215}, {"source": 4578, "target": 4586}, {"source": 4578, "target": 22813}, {"source": 4578, "target": 43687}, {"source": 4578, "target": 100828}, {"source": 4578, "target": 142103}, {"source": 4578, "target": 193138}, {"source": 4578, "target": 207418}, {"source": 4578, "target": 216078}, {"source": 30916, "target": 100828}, {"source": 30916, "target": 207418}, {"source": 145989, "target": 100828}, {"source": 145989, "target": 8973}, {"source": 43687, "target": 8973}, {"source": 43687, "target": 22813}, {"source": 43687, "target": 193138}, {"source": 43687, "target": 100828}, {"source": 43687, "target": 142103}, {"source": 2215, "target": 1780}, {"source": 2215, "target": 4586}, {"source": 2215, "target": 100828}, {"source": 4586, "target": 1454}, {"source": 4586, "target": 1780}, {"source": 4586, "target": 100828}, {"source": 4586, "target": 207418}, {"source": 4586, "target": 22813}, {"source": 4586, "target": 142103}, {"source": 4586, "target": 216078}, {"source": 8973, "target": 100828}, {"source": 8973, "target": 193138}, {"source": 8973, "target": 22813}, {"source": 1454, "target": 1780}, {"source": 1454, "target": 22813}, {"source": 1454, "target": 100828}, {"source": 1454, "target": 207418}, {"source": 1454, "target": 216078}, {"source": 216078, "target": 22813}, {"source": 216078, "target": 100828}, {"source": 216078, "target": 1780}, {"source": 216078, "target": 207418}, {"source": 193138, "target": 100828}, {"source": 1780, "target": 22813}, {"source": 1780, "target": 207418}, {"source": 1780, "target": 30614}, {"source": 1780, "target": 100828}, {"source": 1780, "target": 142103}, {"source": 30614, "target": 142103}, {"source": 30614, "target": 100828}, {"source": 142103, "target": 100828}, {"source": 207418, "target": 22813}, {"source": 100828, "target": 22813}]}
Your task is to find the common neighbors of two nodes in an undirected academic network. In this network, nodes represent authors and edges represent research collaborations.

**Problem to Solve**

- Authors in the network: Robert L. Grossman, Jeffrey Xu Yu, Wei Wang, Panos Vassiliadis, Joshua Spiegel, Matei Zaharia, Damien K. Fisher, H. V. Jagadish, Vinayak R. Borkar, Philip S. Yu, Man Lung Yiu, Michael Isard, Divesh Srivastava, Eugene Wu, Jiannan Wang, Rakesh Agrawal, Neoklis Polyzotis, Walid G. Aref
- Research collaborations between these authors: Robert L. Grossman and Philip S. Yu, Robert L. Grossman and Neoklis Polyzotis, Jeffrey Xu Yu and Philip S. Yu, Jeffrey Xu Yu and Divesh Srivastava, Jeffrey Xu Yu and Wei Wang, Jeffrey Xu Yu and H. V. Jagadish, Jeffrey Xu Yu and Walid G. Aref, Jeffrey Xu Yu and Vinayak R. Borkar, Jeffrey Xu Yu and Neoklis Polyzotis, Jeffrey Xu Yu and Rakesh Agrawal, Jeffrey Xu Yu and Man Lung Yiu, Jeffrey Xu Yu and Jiannan Wang, Wei Wang and Philip S. Yu, Wei Wang and Divesh Srivastava, Wei Wang and Damien K. Fisher, Wei Wang and H. V. Jagadish, Wei Wang and Walid G. Aref, Wei Wang and Matei Zaharia, Wei Wang and Neoklis Polyzotis, Wei Wang and Jiannan Wang, Wei Wang and Michael Isard, Wei Wang and Rakesh Agrawal, Wei Wang and Man Lung Yiu, Panos Vassiliadis and Neoklis Polyzotis, Panos Vassiliadis and Rakesh Agrawal, Joshua Spiegel and Neoklis Polyzotis, Joshua Spiegel and Vinayak R. Borkar, Matei Zaharia and Vinayak R. Borkar, Matei Zaharia and Walid G. Aref, Matei Zaharia and Michael Isard, Matei Zaharia and Neoklis Polyzotis, Matei Zaharia and Jiannan Wang, Damien K. Fisher and Divesh Srivastava, Damien K. Fisher and H. V. Jagadish, Damien K. Fisher and Neoklis Polyzotis, H. V. Jagadish and Philip S. Yu, H. V. Jagadish and Divesh Srivastava, H. V. Jagadish and Neoklis Polyzotis, H. V. Jagadish and Rakesh Agrawal, H. V. Jagadish and Walid G. Aref, H. V. Jagadish and Jiannan Wang, H. V. Jagadish and Man Lung Yiu, Vinayak R. Borkar and Neoklis Polyzotis, Vinayak R. Borkar and Michael Isard, Vinayak R. Borkar and Walid G. Aref, Philip S. Yu and Divesh Srivastava, Philip S. Yu and Walid G. Aref, Philip S. Yu and Neoklis Polyzotis, Philip S. Yu and Rakesh Agrawal, Philip S. Yu and Man Lung Yiu, Man Lung Yiu and Walid G. Aref, Man Lung Yiu and Neoklis Polyzotis, Man Lung Yiu and Divesh Srivastava, Man Lung Yiu and Rakesh Agrawal, Michael Isard and Neoklis Polyzotis, Divesh Srivastava and Walid G. Aref, Divesh Srivastava and Rakesh Agrawal, Divesh Srivastava and Eugene Wu, Divesh Srivastava and Neoklis Polyzotis, Divesh Srivastava and Jiannan Wang, Eugene Wu and Jiannan Wang, Eugene Wu and Neoklis Polyzotis, Jiannan Wang and Neoklis Polyzotis, Rakesh Agrawal and Walid G. Aref, Neoklis Polyzotis and Walid G. Aref.
Please identify the common neighbors of Robert L. Grossman and Jeffrey Xu Yu in this network.
Present your answer in the following format: [AuthorA, AuthorB, AuthorC, AuthorD, ...].
test