Question: which two tools were featured on the flag of the soviet union
[{'answer': 'Hammer', 'provenance': [{'wikipedia_id': '113586', 'title': 'Flag of the Soviet Union', 'start_paragraph_id': 1, 'start_character': 423, 'end_paragraph_id': 1, 'end_character': 429, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Sickle', 'provenance': [{'wikipedia_id': '113586', 'title': 'Flag of the Soviet Union', 'start_paragraph_id': 1, 'start_character': 434, 'end_paragraph_id': 1, 'end_character': 440, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '113586', 'title': 'Flag of the Soviet Union', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 459, 'bleu_score': 0.655556446693736, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3255396789018780584}, 'section': 'Section::::Abstract.'}]}]