Question: who hit the first home run at the new yankee stadium
[{'answer': 'Jorge Posada', 'provenance': [{'wikipedia_id': '22146637', 'title': 'Yankee Stadium', 'start_paragraph_id': 45, 'start_character': 578, 'end_paragraph_id': 45, 'end_character': 590, 'bleu_score': 1.0, 'section': 'Section::::Stadium firsts.\n'}]}, {'provenance': [{'wikipedia_id': '22146637', 'title': 'Yankee Stadium', 'start_paragraph_id': 45, 'start_character': 0, 'end_paragraph_id': 45, 'end_character': 824, 'bleu_score': 0.9640848954757241, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8581837566717365794}, 'section': 'Section::::Stadium firsts.\n'}]}]