Question: what are terms of reference in a project
[{'answer': 'define the purpose and structures', 'provenance': [{'wikipedia_id': '7146530', 'title': 'Terms of reference', 'start_paragraph_id': 1, 'start_character': 25, 'end_paragraph_id': 1, 'end_character': 58, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '7146530', 'title': 'Terms of reference', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 620, 'bleu_score': 0.952657101209585, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8175267969807682926}, 'section': 'Section::::Abstract.'}]}]