Question: when was the goal post moved in the nfl
[{'answer': '1933', 'provenance': [{'wikipedia_id': '10016', 'title': 'End zone', 'start_paragraph_id': 7, 'start_character': 985, 'end_paragraph_id': 7, 'end_character': 989, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'answer': '1974', 'provenance': [{'wikipedia_id': '10016', 'title': 'End zone', 'start_paragraph_id': 7, 'start_character': 1026, 'end_paragraph_id': 7, 'end_character': 1030, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '10016', 'title': 'End zone', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 1030, 'bleu_score': 0.988857503993915, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3858313426812271005}, 'section': 'Section::::History.\n'}]}]