Question: when did the coast guard transfer to dhs
[{'answer': '1 March 2003', 'provenance': [{'wikipedia_id': '32223', 'title': 'United States Coast Guard', 'start_paragraph_id': 37, 'start_character': 353, 'end_paragraph_id': 37, 'end_character': 365, 'bleu_score': 1.0, 'section': 'Section::::Mission.:Authority as an armed service.\n'}]}, {'provenance': [{'wikipedia_id': '32223', 'title': 'United States Coast Guard', 'start_paragraph_id': 37, 'start_character': 0, 'end_paragraph_id': 37, 'end_character': 365, 'bleu_score': 0.9663744727315161, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2935032775250257445}, 'section': 'Section::::Mission.:Authority as an armed service.\n'}]}]