Question: what is the solid outermost layer of the earth
[{'answer': 'crust', 'provenance': [{'wikipedia_id': '1417149', 'title': 'Structure of the Earth', 'start_paragraph_id': 1, 'start_character': 92, 'end_paragraph_id': 1, 'end_character': 97, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1417149', 'title': 'Structure of the Earth', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 707, 'bleu_score': 0.8320322866322131, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6807345119490856304}, 'section': 'Section::::Abstract.'}]}]