Question: which type of organism produces food in an ecosystem
[{'answer': 'autotrophs', 'provenance': [{'wikipedia_id': '11724761', 'title': 'Trophic level', 'start_paragraph_id': 7, 'start_character': 23, 'end_paragraph_id': 7, 'end_character': 33, 'bleu_score': 1.0, 'section': 'Section::::Overview.\n'}]}, {'provenance': [{'wikipedia_id': '11724761', 'title': 'Trophic level', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 521, 'bleu_score': 0.9754554449993441, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11067614880780738534}, 'section': 'Section::::Overview.\n'}]}]