Question: in which major colonial city did the second continental congress meet
[{'answer': 'Philadelphia , Pennsylvania', 'provenance': [{'wikipedia_id': '365561', 'title': 'Second Continental Congress', 'start_paragraph_id': 1, 'start_character': 172, 'end_paragraph_id': 1, 'end_character': 206, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]