Question: who formed majority in terms of population in belgium
[{'answer': 'Flemish', 'provenance': [{'wikipedia_id': '67307', 'title': 'Demographics of Belgium', 'start_paragraph_id': 58, 'start_character': 30, 'end_paragraph_id': 58, 'end_character': 37, 'bleu_score': 1.0, 'section': 'Section::::Ethnic groups.\n'}]}, {'provenance': [{'wikipedia_id': '67307', 'title': 'Demographics of Belgium', 'start_paragraph_id': 58, 'start_character': 0, 'end_paragraph_id': 58, 'end_character': 502, 'bleu_score': 0.9748377259086851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1127039264316834228}, 'section': 'Section::::Ethnic groups.\n'}]}]