Question: what are the six subcommittees of the house ways and means committee
[{'answer': 'Health'}, {'answer': 'Human Resources', 'provenance': [{'wikipedia_id': '465643', 'title': 'United States House Committee on Ways and Means', 'start_paragraph_id': 18, 'start_character': 147, 'end_paragraph_id': 18, 'end_character': 162, 'bleu_score': 1.0, 'section': 'Section::::Subcommittees.\n'}]}, {'answer': 'Oversight'}, {'answer': 'Tax Policy', 'provenance': [{'wikipedia_id': '465643', 'title': 'United States House Committee on Ways and Means', 'start_paragraph_id': 18, 'start_character': 306, 'end_paragraph_id': 18, 'end_character': 316, 'bleu_score': 1.0, 'section': 'Section::::Subcommittees.\n'}]}, {'answer': 'Social Security', 'provenance': [{'wikipedia_id': '465643', 'title': 'United States House Committee on Ways and Means', 'start_paragraph_id': 1, 'start_character': 429, 'end_paragraph_id': 1, 'end_character': 444, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Trade', 'provenance': [{'wikipedia_id': '465643', 'title': 'United States House Committee on Ways and Means', 'start_paragraph_id': 10, 'start_character': 789, 'end_paragraph_id': 10, 'end_character': 794, 'bleu_score': 1.0, 'section': 'Section::::Political significance.\n'}]}]