Question: who wrote we were soldiers once and young
[{'answer': 'war journalist Joseph L. Galloway', 'provenance': [{'wikipedia_id': '1481657', 'title': 'We Were Soldiers Once… and Young', 'start_paragraph_id': 1, 'start_character': 93, 'end_paragraph_id': 1, 'end_character': 126, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Lt. Gen. Harold G. Moore ( Ret . )'}, {'provenance': [{'wikipedia_id': '1481657', 'title': 'We Were Soldiers Once… and Young', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 485, 'bleu_score': 0.9587895747539651, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15120146201180696190}, 'section': 'Section::::Abstract.'}]}]