Question: when was free education introduced in sri lanka
[{'answer': '1 October 1945', 'provenance': [{'wikipedia_id': '9368130', 'title': 'C. W. W. Kannangara', 'start_paragraph_id': 20, 'start_character': 155, 'end_paragraph_id': 20, 'end_character': 169, 'bleu_score': 1.0, 'section': 'Section::::Politics.:Education reforms.\n'}]}, {'provenance': [{'wikipedia_id': '9368130', 'title': 'C. W. W. Kannangara', 'start_paragraph_id': 20, 'start_character': 0, 'end_paragraph_id': 20, 'end_character': 505, 'bleu_score': 0.9757530668325981, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 539643995051808139}, 'section': 'Section::::Politics.:Education reforms.\n'}]}]