input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** The effectiveness of condensing porcelain powder to reduce shrinkage is determined by   (A) Shape and size of the particle   (B) Thickness of the platinum matrix   (C) Speed of increase of furnace heat   (D) Using powder of same particle size
output: ['(A) Shape and size of the particle <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Shape and size of the particle  (B) Thickness of the platinum matrix  (C) Speed of increase of furnace heat  (D) Using powder of same particle size <> possible answers', '  The effectiveness of condensing porcelain powder to\nreduce shrinkage is determined by <> context']