Question: who wrote the music for bridge on the river kwai
[{'answer': 'Malcolm Arnold', 'provenance': [{'wikipedia_id': '42856', 'title': 'The Bridge on the River Kwai', 'start_paragraph_id': 29, 'start_character': 17, 'end_paragraph_id': 29, 'end_character': 31, 'bleu_score': 1.0, 'section': 'Section::::Production.:Music and soundtrack.\n'}]}]