input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Most constant and valuable trait to differentiate among maxillary 1st , 2nd and 3rd molars is   (A) Relative position of DL groove   (B) Relative position of ML groove   (C) ML cusp size   (D) Oblique ridge size
output: ['(A) Relative position of DL groove <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Relative position of DL groove  (B) Relative position of ML groove  (C) ML cusp size  (D) Oblique ridge size <> possible answers', '  Most constant and valuable trait to differentiate among maxillary 1st , 2nd and 3rd molars is <> context']