Question: how do some chemicals in plants protect them from their enemies
[{'answer': 'repellents', 'provenance': [{'wikipedia_id': '4189740', 'title': 'Plant defense against herbivory', 'start_paragraph_id': 1, 'start_character': 481, 'end_paragraph_id': 1, 'end_character': 491, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'toxins', 'provenance': [{'wikipedia_id': '4189740', 'title': 'Plant defense against herbivory', 'start_paragraph_id': 1, 'start_character': 495, 'end_paragraph_id': 1, 'end_character': 501, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'reduce plant digestibility', 'provenance': [{'wikipedia_id': '4189740', 'title': 'Plant defense against herbivory', 'start_paragraph_id': 1, 'start_character': 520, 'end_paragraph_id': 1, 'end_character': 546, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4189740', 'title': 'Plant defense against herbivory', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 546, 'bleu_score': 0.9748377259086851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15948691694654274299}, 'section': 'Section::::Abstract.'}]}]