Question: which constellation is home to the stephan's quintet
[{'answer': 'Pegasus', 'provenance': [{'wikipedia_id': '447864', 'title': "Stephan's Quintet", 'start_paragraph_id': 1, 'start_character': 163, 'end_paragraph_id': 1, 'end_character': 170, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]