Question: who was the 1st batsman to score century in ipl
[{'answer': 'Brendon McCullum', 'provenance': [{'wikipedia_id': '31521120', 'title': 'List of Indian Premier League centuries', 'start_paragraph_id': 2, 'start_character': 116, 'end_paragraph_id': 2, 'end_character': 132, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '31521120', 'title': 'List of Indian Premier League centuries', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 495, 'bleu_score': 0.718028939102468, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2502719344146771797}, 'section': 'Section::::Abstract.'}]}]