Question: what is the main language spoken in cape town
[{'answer': 'Afrikaans', 'provenance': [{'wikipedia_id': '6653', 'title': 'Cape Town', 'start_paragraph_id': 41, 'start_character': 25, 'end_paragraph_id': 41, 'end_character': 34, 'bleu_score': 1.0, 'section': 'Section::::Suburbs.:Northern Suburbs.\n'}]}]