Question: when did singapore officially became a part of the british empire
[{'answer': '1946', 'provenance': [{'wikipedia_id': '5943925', 'title': 'Colony of Singapore', 'start_paragraph_id': 1, 'start_character': 69, 'end_paragraph_id': 1, 'end_character': 73, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5943925', 'title': 'Colony of Singapore', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 506, 'bleu_score': 0.9361374222844411, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11673897028941781654}, 'section': 'Section::::Abstract.'}]}]