Question: who wrote the song balls to the wall
[{'answer': 'Udo Dirkschneider', 'provenance': [{'wikipedia_id': '22939525', 'title': 'Balls to the Wall (song)', 'start_paragraph_id': 5, 'start_character': 451, 'end_paragraph_id': 5, 'end_character': 468, 'bleu_score': 1.0, 'section': 'Section::::Music video.\n'}]}, {'answer': 'Wolf Hoffmann', 'provenance': [{'wikipedia_id': '22939525', 'title': 'Balls to the Wall (song)', 'start_paragraph_id': 3, 'start_character': 47, 'end_paragraph_id': 3, 'end_character': 60, 'bleu_score': 1.0, 'section': 'Section::::Song meaning.\n'}]}, {'answer': 'Herman Frank', 'provenance': [{'wikipedia_id': '22939525', 'title': 'Balls to the Wall (song)', 'start_paragraph_id': 24, 'start_character': 12, 'end_paragraph_id': 24, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Personnel (Accept).\n'}]}, {'answer': 'Peter Baltes', 'provenance': [{'wikipedia_id': '22939525', 'title': 'Balls to the Wall (song)', 'start_paragraph_id': 25, 'start_character': 12, 'end_paragraph_id': 25, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Personnel (Accept).\n'}]}, {'answer': 'Stefan Kaufmann', 'provenance': [{'wikipedia_id': '22939525', 'title': 'Balls to the Wall (song)', 'start_paragraph_id': 26, 'start_character': 12, 'end_paragraph_id': 26, 'end_character': 27, 'bleu_score': 1.0, 'section': 'Section::::Personnel (Accept).\n'}]}, {'answer': 'Deaffy'}, {'provenance': [{'wikipedia_id': '22939525', 'title': 'Balls to the Wall (song)', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['"Balls to the Wall" is a song by German heavy metal band Accept. The song was released as the lead single from their 1983 fifth studio album of the same name. The anthemic title track is the album\'s best known song, and became Accept\'s signature song, for which a music video was shot that received American airplay on MTV. Asked about the meaning of the song, guitarist Wolf Hoffmann replied: Filmed in January 1984 in London, the song\'s music video consists of clips of the band performing', '"Balls to the Wall" is a song by German heavy metal band Accept. The song was released as the lead single from their 1983 fifth studio album of the same name. The anthemic title track is the album\'s best known song, and became Accept\'s signature song, for which a music video was shot that received American airplay on MTV. Asked about the meaning of the song, guitarist Wolf Hoffmann replied: Filmed in January 1984 in London, the song\'s music video consists of clips of the band performing', "The anthemic title track is the album's best known song, and became Accept's signature song, for which a music video was shot that received American airplay on MTV. Asked about the meaning of the song, guitarist Wolf Hoffmann replied: Filmed in January 1984 in London, the song's music video consists of clips of the band performing"]}}]}, {'provenance': [{'wikipedia_id': '6376352', 'title': 'Balls to the Wall', 'section': 'Section::::Album information.\n', 'start_paragraph_id': 3, 'end_paragraph_id': 3, 'meta': {'evidence_span': ['"You Americans are so uptight about this. In Europe it was never a big deal...we just wanted to be controversial and different and touch on these touchy subjects, because it gave us good press and it worked fabulously, you know". Drummer Stefan Kaufmann explained that many of the themes on the album were about oppressed minorities in general.', 'Some of the album\'s success can no doubt be attributed to the publicity generated from the minor "gay metal" controversy that broke out upon its American release, due to the record\'s title and front cover being deemed by some as homoerotic, as well as the lyrics to "London Leatherboys" and "Love Child" appearing to concern homosexuals. Guitarist Wolf Hoffmann was dismissive of the controversy, saying years later that "You Americans are so uptight about this. In Europe it was never a big deal...we just wanted to be controversial and different and touch on these touchy subjects, because it gave us good press and it worked fabulously, you know". Drummer Stefan Kaufmann explained that many of the themes on the album were about oppressed minorities in general. "London Leatherboys" was really about bikers, for example: "They\'re normal people, they just look different and they behave different. But they\'re normal people, another minority. And \'Love Child\' was about gays, true, but it\'s basically about people who are suppressed." Concerning the homosexuality issues themselves, Kaufmann said in an interview with French magazine "Enfer" (n°7, 1983):', 'Drummer Stefan Kaufmann explained that many of the themes on the album were about oppressed minorities in general.']}}]}, {'provenance': [{'wikipedia_id': '22939525', 'title': 'Balls to the Wall (song)', 'section': 'Section::::Personnel (Accept).\n', 'start_paragraph_id': 26, 'end_paragraph_id': 26, 'meta': {'evidence_span': ['Stefan Kaufmann drums', 'BULLET::::- Stefan Kaufmann drums', 'Stefan Kaufmann drums']}}]}]