Question: when is big brother naija starting in 2018
[{'answer': '28 January 2018', 'provenance': [{'wikipedia_id': '56116995', 'title': 'Big Brother Naija (season 3)', 'start_paragraph_id': 1, 'start_character': 171, 'end_paragraph_id': 1, 'end_character': 186, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '56116995', 'title': 'Big Brother Naija (season 3)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 266, 'bleu_score': 0.8499315997274991, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9235832917160859488}, 'section': 'Section::::Abstract.'}]}]