Question: when was the first ford plant opened in south africa
[{'answer': 'early 1980s', 'provenance': [{'wikipedia_id': '3211856', 'title': 'Samcor', 'start_paragraph_id': 7, 'start_character': 128, 'end_paragraph_id': 7, 'end_character': 139, 'bleu_score': 1.0, 'section': 'Section::::Background.\n'}]}, {'provenance': [{'wikipedia_id': '3211856', 'title': 'Samcor', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 643, 'bleu_score': 0.9812185674664711, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8763844085973431025}, 'section': 'Section::::Background.\n'}]}]