Question: who did zac efron play in high school musical
[{'answer': 'the male lead Troy Bolton', 'provenance': [{'wikipedia_id': '16705483', 'title': 'Zac Efron', 'start_paragraph_id': 10, 'start_character': 261, 'end_paragraph_id': 10, 'end_character': 286, 'bleu_score': 1.0, 'section': 'Section::::Career.:2006–2009: "High School Musical" and breakthrough.\n'}]}, {'provenance': [{'wikipedia_id': '16705483', 'title': 'Zac Efron', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 1167, 'bleu_score': 0.9896637358043451, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 486084601534332185}, 'section': 'Section::::Career.:2006–2009: "High School Musical" and breakthrough.\n'}]}]