Question: when did the colonists form their first united and official army
[{'answer': 'June 14 , 1775', 'provenance': [{'wikipedia_id': '168210', 'title': 'Continental Army', 'start_paragraph_id': 5, 'start_character': 223, 'end_paragraph_id': 5, 'end_character': 237, 'bleu_score': 1.0, 'section': 'Section::::Origins.\n'}]}, {'provenance': [{'wikipedia_id': '168210', 'title': 'Continental Army', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 621, 'bleu_score': 0.9379922443518061, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12163573042429667267}, 'section': 'Section::::Abstract.'}]}]