Question: which raf base did the dambusters fly from
[{'answer': 'RAF Lossiemouth in Scotland'}, {'provenance': [{'wikipedia_id': '602873', 'title': 'No. 617 Squadron RAF', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 554, 'bleu_score': 0.588383548526461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3622660130990315903}, 'section': 'Section::::Abstract.'}]}]