Question: when did penn state entered the big 10
[{'answer': 'in 1993', 'provenance': [{'wikipedia_id': '6127920', 'title': 'Penn State Nittany Lions football', 'start_paragraph_id': 1, 'start_character': 232, 'end_paragraph_id': 1, 'end_character': 239, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6127920', 'title': 'Penn State Nittany Lions football', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 304, 'bleu_score': 0.959574895300321, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6965712447655019039}, 'section': 'Section::::Abstract.'}]}]