Question: who wrote the song say something i m giving up on you
[{'answer': 'Ian Axel', 'provenance': [{'wikipedia_id': '41043622', 'title': 'Say Something (A Great Big World song)', 'start_paragraph_id': 1, 'start_character': 153, 'end_paragraph_id': 1, 'end_character': 161, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Chad King', 'provenance': [{'wikipedia_id': '41043622', 'title': 'Say Something (A Great Big World song)', 'start_paragraph_id': 1, 'start_character': 166, 'end_paragraph_id': 1, 'end_character': 175, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Mike Campbell', 'provenance': [{'wikipedia_id': '41043622', 'title': 'Say Something (A Great Big World song)', 'start_paragraph_id': 1, 'start_character': 186, 'end_paragraph_id': 1, 'end_character': 199, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]