Question: when did they start filming the block 2018
[{'answer': '8 February 2018', 'provenance': [{'wikipedia_id': '2311410', 'title': 'The Block (Australian TV series)', 'start_paragraph_id': 98, 'start_character': 302, 'end_paragraph_id': 98, 'end_character': 317, 'bleu_score': 1.0, 'section': 'Section::::Season synopsis.:Season 14.\n'}]}, {'provenance': [{'wikipedia_id': '2311410', 'title': 'The Block (Australian TV series)', 'start_paragraph_id': 98, 'start_character': 0, 'end_paragraph_id': 98, 'end_character': 615, 'bleu_score': 0.9344132766918241, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3139189870330930355}, 'section': 'Section::::Season synopsis.:Season 14.\n'}]}]