Question: when did the ford plant in norfolk close
[{'answer': '2007', 'provenance': [{'wikipedia_id': '16881322', 'title': 'Norfolk Assembly', 'start_paragraph_id': 1, 'start_character': 147, 'end_paragraph_id': 1, 'end_character': 151, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '16881322', 'title': 'Norfolk Assembly', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 151, 'bleu_score': 0.9181891462193901, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6460428217806662461}, 'section': 'Section::::Abstract.'}]}]