Question: who sings on right turn by alice in chains
[{'answer': 'Mark Arm', 'provenance': [{'wikipedia_id': '254007', 'title': 'Sap (EP)', 'start_paragraph_id': 5, 'start_character': 196, 'end_paragraph_id': 5, 'end_character': 204, 'bleu_score': 1.0, 'section': 'Section::::Music and lyrics.\n'}]}, {'answer': 'Chris Cornell', 'provenance': [{'wikipedia_id': '254007', 'title': 'Sap (EP)', 'start_paragraph_id': 5, 'start_character': 221, 'end_paragraph_id': 5, 'end_character': 234, 'bleu_score': 1.0, 'section': 'Section::::Music and lyrics.\n'}]}]