Question: what is the most common language spoken in ghana
[{'answer': 'Akan', 'provenance': [{'wikipedia_id': '4819139', 'title': 'Languages of Ghana', 'start_paragraph_id': 1, 'start_character': 220, 'end_paragraph_id': 1, 'end_character': 224, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4819139', 'title': 'Languages of Ghana', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 250, 'bleu_score': 0.9517713210466091, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9182790173707550928}, 'section': 'Section::::Abstract.'}]}]