input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A phenomenon by which a sustance appears different under varying conditions of colour is called as?   (A) Mesomerism   (B) Metamerism   (C) Fluorescence   (D) Refractive index
output: ['(B) Metamerism <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Mesomerism  (B) Metamerism  (C) Fluorescence  (D) Refractive index <> possible answers', '  A phenomenon by which a sustance appears different under varying conditions of colour is called as? <> context']