Question: where does most star formation take place in the milky way
[{'answer': 'the spiral arms', 'provenance': [{'wikipedia_id': '2589714', 'title': 'Milky Way', 'start_paragraph_id': 45, 'start_character': 166, 'end_paragraph_id': 45, 'end_character': 181, 'bleu_score': 1.0, 'section': 'Section::::Structure.:Halo.\n'}]}, {'answer': 'the disk', 'provenance': [{'wikipedia_id': '2589714', 'title': 'Milky Way', 'start_paragraph_id': 36, 'start_character': 112, 'end_paragraph_id': 36, 'end_character': 120, 'bleu_score': 1.0, 'section': 'Section::::Structure.:Spiral arms.\n'}]}, {'provenance': [{'wikipedia_id': '2589714', 'title': 'Milky Way', 'start_paragraph_id': 45, 'start_character': 0, 'end_paragraph_id': 45, 'end_character': 364, 'bleu_score': 0.9297257490286691, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13803506407994404167}, 'section': 'Section::::Structure.:Halo.\n'}]}]