Question: what are the three components of the fire triangle
[{'answer': 'heat', 'provenance': [{'wikipedia_id': '888192', 'title': 'Fire triangle', 'start_paragraph_id': 2, 'start_character': 68, 'end_paragraph_id': 2, 'end_character': 72, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'fuel', 'provenance': [{'wikipedia_id': '888192', 'title': 'Fire triangle', 'start_paragraph_id': 2, 'start_character': 74, 'end_paragraph_id': 2, 'end_character': 78, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'an oxidizing agent ( usually oxygen )'}, {'provenance': [{'wikipedia_id': '888192', 'title': 'Fire triangle', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 663, 'bleu_score': 0.9828310228624961, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 953950495727161133}, 'section': 'Section::::Abstract.'}]}]