Question: when did the second continental congress first meet
[{'answer': 'May 10 , 1775', 'provenance': [{'wikipedia_id': '365561', 'title': 'Second Continental Congress', 'start_paragraph_id': 6, 'start_character': 272, 'end_paragraph_id': 6, 'end_character': 287, 'bleu_score': 1.0, 'section': 'Section::::History.:"De facto" government.\n'}]}]