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
You are required to calculate the diameter of an undirected knowledge graph.
The diameter of a graph is the maximum distance between any pair of nodes in the graph. To compute this, you need to find the shortest path between all pairs of nodes and then determine the maximum length of these shortest paths.

**Problem to Solve**

- Entities in this knowledge graph: Leon Schlesinger, Anthony Dod Mantle, Robert Clampett, Virgil Ross, Rod Scribner, Merrie Melodies, Fowl Weather, Warner Bros. Pictures, 127 Hours, Tex Avery, Horton Hatches the Egg (1942 film), I Love to Singa, Yankee Doodle Bugs, Cartman Gets an Anal Probe
- The relationships between these entities are as follows:
 - Leon Schlesinger is connected to Horton Hatches the Egg (1942 film) via the relationship producer.
 - Leon Schlesinger is connected to Merrie Melodies via the relationship producer.
 - Leon Schlesinger is connected to I Love to Singa via the relationship producer.
 - Anthony Dod Mantle is connected to 127 Hours via the relationship cinematography.
 - Robert Clampett is connected to I Love to Singa via the relationship animator.
 - Virgil Ross is connected to I Love to Singa via the relationship animator.
 - Virgil Ross is connected to Yankee Doodle Bugs via the relationship animator.
 - Virgil Ross is connected to Horton Hatches the Egg (1942 film) via the relationship animator.
 - Virgil Ross is connected to Merrie Melodies via the relationship animator.
 - Virgil Ross is connected to Fowl Weather via the relationship animator.
 - Rod Scribner is connected to Merrie Melodies via the relationship animator.
 - Rod Scribner is connected to Horton Hatches the Egg (1942 film) via the relationship animator.
 - Merrie Melodies is connected to Horton Hatches the Egg (1942 film) via the relationship series.
 - Merrie Melodies is connected to Tex Avery via the relationship director.
 - Merrie Melodies is connected to I Love to Singa via the relationship series.
 - Merrie Melodies is connected to Fowl Weather via the relationship series.
 - Fowl Weather is connected to Warner Bros. Pictures via the relationship distributor.
 - Warner Bros. Pictures is connected to I Love to Singa via the relationship distributor.
 - Warner Bros. Pictures is connected to Yankee Doodle Bugs via the relationship distributor.
 - Warner Bros. Pictures is connected to Horton Hatches the Egg (1942 film) via the relationship distributor.
 - Warner Bros. Pictures is connected to 127 Hours via the relationship distributor.
 - Tex Avery is connected to I Love to Singa via the relationship director.
 - I Love to Singa is connected to Cartman Gets an Anal Probe via the relationship musicComposer.
Please determine the diameter of this network and output the corresponding path in the following format: [Entity1, Entity2, ..., EntityN].
user
{"directed": false, "multigraph": false, "graph": {}, "nodes": [{"name": "Leon Schlesinger", "id": 19523}, {"name": "Anthony Dod Mantle", "id": 489797}, {"name": "Robert Clampett", "id": 322983}, {"name": "Rod Scribner", "id": 356139}, {"name": "Merrie Melodies", "id": 4235}, {"name": "Yankee Doodle Bugs", "id": 516824}, {"name": "Fowl Weather", "id": 457809}, {"name": "Warner Bros. Pictures", "id": 3154}, {"name": "127 Hours", "id": 860049}, {"name": "Tex Avery", "id": 45944}, {"name": "Horton Hatches the Egg (1942 film)", "id": 90549}, {"name": "I Love to Singa", "id": 137719}, {"name": "Virgil Ross", "id": 137720}, {"name": "Cartman Gets an Anal Probe", "id": 981214}], "links": [{"relation": "producer", "source": 19523, "target": 90549}, {"relation": "producer", "source": 19523, "target": 4235}, {"relation": "producer", "source": 19523, "target": 137719}, {"relation": "cinematography", "source": 489797, "target": 860049}, {"relation": "animator", "source": 322983, "target": 137719}, {"relation": "animator", "source": 356139, "target": 4235}, {"relation": "animator", "source": 356139, "target": 90549}, {"relation": "series", "source": 4235, "target": 90549}, {"relation": "director", "source": 4235, "target": 45944}, {"relation": "series", "source": 4235, "target": 137719}, {"relation": "animator", "source": 4235, "target": 137720}, {"relation": "series", "source": 4235, "target": 457809}, {"relation": "animator", "source": 516824, "target": 137720}, {"relation": "distributor", "source": 516824, "target": 3154}, {"relation": "distributor", "source": 457809, "target": 3154}, {"relation": "animator", "source": 457809, "target": 137720}, {"relation": "distributor", "source": 3154, "target": 137719}, {"relation": "distributor", "source": 3154, "target": 90549}, {"relation": "distributor", "source": 3154, "target": 860049}, {"relation": "director", "source": 45944, "target": 137719}, {"relation": "animator", "source": 90549, "target": 137720}, {"relation": "animator", "source": 137719, "target": 137720}, {"relation": "musicComposer", "source": 137719, "target": 981214}]}
You are required to calculate the diameter of an undirected knowledge graph.
The diameter of a graph is the maximum distance between any pair of nodes in the graph. To compute this, you need to find the shortest path between all pairs of nodes and then determine the maximum length of these shortest paths.

**Problem to Solve**

- Entities in this knowledge graph: Leon Schlesinger, Anthony Dod Mantle, Robert Clampett, Virgil Ross, Rod Scribner, Merrie Melodies, Fowl Weather, Warner Bros. Pictures, 127 Hours, Tex Avery, Horton Hatches the Egg (1942 film), I Love to Singa, Yankee Doodle Bugs, Cartman Gets an Anal Probe
- The relationships between these entities are as follows:
 - Leon Schlesinger is connected to Horton Hatches the Egg (1942 film) via the relationship producer.
 - Leon Schlesinger is connected to Merrie Melodies via the relationship producer.
 - Leon Schlesinger is connected to I Love to Singa via the relationship producer.
 - Anthony Dod Mantle is connected to 127 Hours via the relationship cinematography.
 - Robert Clampett is connected to I Love to Singa via the relationship animator.
 - Virgil Ross is connected to I Love to Singa via the relationship animator.
 - Virgil Ross is connected to Yankee Doodle Bugs via the relationship animator.
 - Virgil Ross is connected to Horton Hatches the Egg (1942 film) via the relationship animator.
 - Virgil Ross is connected to Merrie Melodies via the relationship animator.
 - Virgil Ross is connected to Fowl Weather via the relationship animator.
 - Rod Scribner is connected to Merrie Melodies via the relationship animator.
 - Rod Scribner is connected to Horton Hatches the Egg (1942 film) via the relationship animator.
 - Merrie Melodies is connected to Horton Hatches the Egg (1942 film) via the relationship series.
 - Merrie Melodies is connected to Tex Avery via the relationship director.
 - Merrie Melodies is connected to I Love to Singa via the relationship series.
 - Merrie Melodies is connected to Fowl Weather via the relationship series.
 - Fowl Weather is connected to Warner Bros. Pictures via the relationship distributor.
 - Warner Bros. Pictures is connected to I Love to Singa via the relationship distributor.
 - Warner Bros. Pictures is connected to Yankee Doodle Bugs via the relationship distributor.
 - Warner Bros. Pictures is connected to Horton Hatches the Egg (1942 film) via the relationship distributor.
 - Warner Bros. Pictures is connected to 127 Hours via the relationship distributor.
 - Tex Avery is connected to I Love to Singa via the relationship director.
 - I Love to Singa is connected to Cartman Gets an Anal Probe via the relationship musicComposer.
Please determine the diameter of this network and output the corresponding path in the following format: [Entity1, Entity2, ..., EntityN].
test