Question: where did the armies meet for the first battle of the philadelphia campaign
[{'answer': 'Battle of Brandywine', 'provenance': [{'wikipedia_id': '4332104', 'title': 'Philadelphia campaign', 'start_paragraph_id': 1, 'start_character': 608, 'end_paragraph_id': 1, 'end_character': 628, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4332104', 'title': 'Philadelphia campaign', 'start_paragraph_id': 16, 'start_character': 0, 'end_paragraph_id': 16, 'end_character': 379, 'bleu_score': 0.96746874041754, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13851174608789851410}, 'section': 'Section::::Capture of Philadelphia.\n'}]}]