question: AB = AC. Find x.
  Choices:
  A:20
  B:30
  C:40
  D:50
query_wo: Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
  Question: AB = AC. Find x.
  Choices:
  A:20
  B:30
  C:40
  D:50
query_cot: Please first conduct reasoning, and then answer the question and provide the correct option letter, e.g., A, B, C, D, at the end.
  Question: AB = AC. Find x.
  Choices:
  A:20
  B:30
  C:40
  D:50
question_for_eval: AB = AC. Find x.
  Choices:
  A:20
  B:30
  C:40
  D:50