Question: when will tottenham court road station be finished
[{'answer': 'December 2015', 'provenance': [{'wikipedia_id': '173845', 'title': 'Tottenham Court Road tube station', 'start_paragraph_id': 20, 'start_character': 23, 'end_paragraph_id': 20, 'end_character': 36, 'bleu_score': 1.0, 'section': 'Section::::History.:Congestion relief.\n'}]}]