| Input | Output | 
|---|---|
|  Given the adjacency matrix of a weighted undirected graph as follows, the total weight of its minimum spanning tree is:<image 1> (A) 22 (B) 20 (C) 15 (D) 8 Answer with the option's letter from the given choices directly. No punctuation. | 22 Difficulty: Medium Subfield: Data Structure and Algorithm | 
{
  "choices": [
    {
      "message": {
        "role": "assistant",
        "content": "22 "
      }
    }
  ],
  "model": "nousresearch/nous-hermes-2-vision-7b",
  "id": "gen-IEqmjYf5J2qbVaEVuHLf9RNIXsXY",
  "object": "chat.completion",
  "created": 1708558338,
  "usage": {
    "prompt_tokens": 88,
    "completion_tokens": 4,
    "total_tokens": 92
  }
}