Question: when did the french enter the revolutionary war
[{'answer': 'February 6 , 1778', 'provenance': [{'wikipedia_id': '2973792', 'title': 'France in the American Revolutionary War', 'start_paragraph_id': 16, 'start_character': 48, 'end_paragraph_id': 16, 'end_character': 65, 'bleu_score': 1.0, 'section': 'Section::::French involvement.:Entry into the war.\n'}]}, {'provenance': [{'wikipedia_id': '2973792', 'title': 'France in the American Revolutionary War', 'start_paragraph_id': 16, 'start_character': 0, 'end_paragraph_id': 16, 'end_character': 1059, 'bleu_score': 0.8503450285795351, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10908095756051971038}, 'section': 'Section::::French involvement.:Entry into the war.\n'}]}]