Question: what is the top part of a key called
[{'answer': 'bow', 'provenance': [{'wikipedia_id': '525465', 'title': 'Lock and key', 'start_paragraph_id': 2, 'start_character': 260, 'end_paragraph_id': 2, 'end_character': 263, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '525465', 'title': 'Lock and key', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 644, 'bleu_score': 0.756936440733006, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11690656564985539266}, 'section': 'Section::::Abstract.'}]}]