Question: when was the first jamb conducted in nigeria
[{'answer': '1978', 'provenance': [{'wikipedia_id': '8280040', 'title': 'Joint Admissions and Matriculation Board', 'start_paragraph_id': 2, 'start_character': 80, 'end_paragraph_id': 2, 'end_character': 84, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]