Question: where does the heat in chillies come from
[{'answer': 'Capsaicin', 'provenance': [{'wikipedia_id': '57421', 'title': 'Capsaicin', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 9, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '57421', 'title': 'Capsaicin', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 558, 'bleu_score': 0.8563910673415851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5746170043911829418}, 'section': 'Section::::Abstract.'}]}]