Question: how many barangays in san fernando city la union
[{'answer': '59', 'provenance': [{'wikipedia_id': '420187', 'title': 'San Fernando, La Union', 'start_paragraph_id': 8, 'start_character': 5, 'end_paragraph_id': 8, 'end_character': 7, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}]