Question: who acts as the head of both the houses of parliament
[{'answer': 'President', 'provenance': [{'wikipedia_id': '410238', 'title': 'Parliament of India', 'start_paragraph_id': 1, 'start_character': 128, 'end_paragraph_id': 1, 'end_character': 137, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '410238', 'title': 'Parliament of India', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 502, 'bleu_score': 0.8675366065785061, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16715169018984319825}, 'section': 'Section::::Abstract.'}]}]