Question: what is the name of the largest constellation
[{'answer': 'Hydra', 'provenance': [{'wikipedia_id': '213468', 'title': 'Hydra (constellation)', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 5, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '213468', 'title': 'Hydra (constellation)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 362, 'bleu_score': 0.6690300574031921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1481173595411534009}, 'section': 'Section::::Abstract.'}]}]