Question: how many mandals are there in karimnagar district
[{'answer': '16', 'provenance': [{'wikipedia_id': '3360217', 'title': 'Karimnagar district', 'start_paragraph_id': 5, 'start_character': 50, 'end_paragraph_id': 5, 'end_character': 52, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '3360217', 'title': 'Karimnagar district', 'start_paragraph_id': 13, 'start_character': 0, 'end_paragraph_id': 13, 'end_character': 94, 'bleu_score': 0.861173529963367, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16300163161819447565}, 'section': 'Section::::Administrative divisions.:Mandals.\n'}]}]