question: C B = 9 x and D E = 2 x + 14. A B \cong D F. Find x.
  Choices:
  A:1
  B:2
  C:3
  D:4
query_wo: Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
  Question: C B = 9 x and D E = 2 x + 14. A B \cong D F. Find x.
  Choices:
  A:1
  B:2
  C:3
  D:4
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: C B = 9 x and D E = 2 x + 14. A B \cong D F. Find x.
  Choices:
  A:1
  B:2
  C:3
  D:4
question_for_eval: C B = 9 x and D E = 2 x + 14. A B \cong D F. Find x.
  Choices:
  A:1
  B:2
  C:3
  D:4