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 solve the Maximum Independent Set problem in the given social network. In this network, each node represents a user, and each edge represents a friendship connection. You need to identify the largest subset of users such that no two users in this subset are friends connected by an edge. 

**Problem to Solve**

- Users in the network: Natasha Daniels, Robert Mitchell, Alyssa Lee, Amy Schwartz, Shannon Rogers, Larry Rubio, Mikayla Hinton, Jeffrey Williams, Joseph Cook, Rachel Odom, Leah English, Kathy Garrison, Julia Mitchell, Nina Lin, Jared Mccullough, Sandra Tyler.
- Fiendship connections: Natasha Daniels and Alyssa Lee, Robert Mitchell and Alyssa Lee, Alyssa Lee and Joseph Cook, Alyssa Lee and Shannon Rogers, Alyssa Lee and Kathy Garrison, Alyssa Lee and Jeffrey Williams, Amy Schwartz and Leah English, Larry Rubio and Leah English, Mikayla Hinton and Nina Lin, Rachel Odom and Leah English, Leah English and Julia Mitchell, Leah English and Kathy Garrison, Leah English and Sandra Tyler, Leah English and Jared Mccullough, Kathy Garrison and Nina Lin.
Identify the Maximum Independent Set of this network and present your answer in the following format: [UserA, UserB, UserC, UserD, ...].
user
{"directed": false, "multigraph": false, "graph": {}, "nodes": [{"name": "Robert Mitchell", "id": 84323}, {"name": "Shannon Rogers", "id": 19044}, {"name": "Amy Schwartz", "id": 268964}, {"name": "Larry Rubio", "id": 434940}, {"name": "Mikayla Hinton", "id": 97699}, {"name": "Kathy Garrison", "id": 434938}, {"name": "Nina Lin", "id": 75196}, {"name": "Jeffrey Williams", "id": 632116}, {"name": "Joseph Cook", "id": 17205}, {"name": "Rachel Odom", "id": 85142}, {"name": "Leah English", "id": 434937}, {"name": "Alyssa Lee", "id": 515898}, {"name": "Julia Mitchell", "id": 269115}, {"name": "Natasha Daniels", "id": 287388}, {"name": "Jared Mccullough", "id": 434941}, {"name": "Sandra Tyler", "id": 434939}], "links": [{"source": 84323, "target": 515898}, {"source": 19044, "target": 515898}, {"source": 268964, "target": 434937}, {"source": 434940, "target": 434937}, {"source": 97699, "target": 75196}, {"source": 434938, "target": 75196}, {"source": 434938, "target": 434937}, {"source": 434938, "target": 515898}, {"source": 632116, "target": 515898}, {"source": 17205, "target": 515898}, {"source": 85142, "target": 434937}, {"source": 434937, "target": 269115}, {"source": 434937, "target": 434939}, {"source": 434937, "target": 434941}, {"source": 515898, "target": 287388}]}
Your task is to solve the Maximum Independent Set problem in the given social network. In this network, each node represents a user, and each edge represents a friendship connection. You need to identify the largest subset of users such that no two users in this subset are friends connected by an edge. 

**Problem to Solve**

- Users in the network: Natasha Daniels, Robert Mitchell, Alyssa Lee, Amy Schwartz, Shannon Rogers, Larry Rubio, Mikayla Hinton, Jeffrey Williams, Joseph Cook, Rachel Odom, Leah English, Kathy Garrison, Julia Mitchell, Nina Lin, Jared Mccullough, Sandra Tyler.
- Fiendship connections: Natasha Daniels and Alyssa Lee, Robert Mitchell and Alyssa Lee, Alyssa Lee and Joseph Cook, Alyssa Lee and Shannon Rogers, Alyssa Lee and Kathy Garrison, Alyssa Lee and Jeffrey Williams, Amy Schwartz and Leah English, Larry Rubio and Leah English, Mikayla Hinton and Nina Lin, Rachel Odom and Leah English, Leah English and Julia Mitchell, Leah English and Kathy Garrison, Leah English and Sandra Tyler, Leah English and Jared Mccullough, Kathy Garrison and Nina Lin.
Identify the Maximum Independent Set of this network and present your answer in the following format: [UserA, UserB, UserC, UserD, ...].
test