Question: when did nick foles come to the eagles
[{'answer': 'May 21 , 2012', 'provenance': [{'wikipedia_id': '25327279', 'title': 'Nick Foles', 'start_paragraph_id': 19, 'start_character': 163, 'end_paragraph_id': 19, 'end_character': 176, 'bleu_score': 1.0, 'section': 'Section::::Professional career.:Philadelphia Eagles.:2012 season.\n'}]}, {'provenance': [{'wikipedia_id': '25327279', 'title': 'Nick Foles', 'start_paragraph_id': 19, 'start_character': 0, 'end_paragraph_id': 19, 'end_character': 1171, 'bleu_score': 0.9340668682958221, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4675852252668628540}, 'section': 'Section::::Professional career.:Philadelphia Eagles.:2012 season.\n'}]}]