Question: when did turkey apply to join the eu
[{'answer': '14 April 1987', 'provenance': [{'wikipedia_id': '1283036', 'title': 'Accession of Turkey to the European Union', 'start_paragraph_id': 1, 'start_character': 181, 'end_paragraph_id': 1, 'end_character': 194, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1283036', 'title': 'Accession of Turkey to the European Union', 'start_paragraph_id': 1, 'start_character': 43, 'end_paragraph_id': 1, 'end_character': 612, 'bleu_score': 0.890131404552139, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3633034214823534361}, 'section': 'Section::::Abstract.'}]}]