Question: who is the general manager of the san diego padres
[{'answer': 'A.J. Preller'}, {'provenance': [{'wikipedia_id': '43485982', 'title': 'A. J. Preller', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 223, 'bleu_score': 0.9309871835665661, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12469745100991263847}, 'section': 'Section::::Abstract.'}]}]