Question: where do hermit crabs get their shells from
[{'answer': 'salvaged empty seashell', 'provenance': [{'wikipedia_id': '275334', 'title': 'Hermit crab', 'start_paragraph_id': 4, 'start_character': 187, 'end_paragraph_id': 4, 'end_character': 210, 'bleu_score': 1.0, 'section': 'Section::::Biological description.\n'}]}, {'provenance': [{'wikipedia_id': '275334', 'title': 'Hermit crab', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 589, 'bleu_score': 0.9796927878356411, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12785097796878708456}, 'section': 'Section::::Biological description.\n'}]}]