Question: how many kanals in one acre in pakistan
[{'answer': '8', 'provenance': [{'wikipedia_id': '24825077', 'title': 'Measurement of land in Punjab', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 1, 'bleu_score': 1.0, 'section': 'Section::::Current standard measurement of farm land.\n'}]}]