question: What are the three main enzymes that break down food ?
answer: pepsin secreted by the stomach and trypsin and chymotrypsin
turker_answer: Pepsin secreted by the stomach and trypsin and chymotrypsin are the three main enzymes that break down food .
rule-based: The three main enzymes that break down food are pepsin secreted by the stomach and trypsin and chymotrypsin .