Question: what is the song my hero by foo fighters about
[{'answer': 'ordinary , everyday heroes', 'provenance': [{'wikipedia_id': '2289344', 'title': 'My Hero (song)', 'start_paragraph_id': 4, 'start_character': 50, 'end_paragraph_id': 4, 'end_character': 76, 'bleu_score': 1.0, 'section': 'Section::::Song information.\n'}]}, {'provenance': [{'wikipedia_id': '2289344', 'title': 'My Hero (song)', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 406, 'bleu_score': 0.9338603241255111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3382999042581652150}, 'section': 'Section::::Song information.\n'}]}]