Question: how many languages are there in benue state
[{'answer': 'the Tiv language'}, {'answer': 'Idoma', 'provenance': [{'wikipedia_id': '1556364', 'title': 'Benue State', 'start_paragraph_id': 1, 'start_character': 153, 'end_paragraph_id': 1, 'end_character': 158, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]