Question: when is the climbing season for mount everest
[{'answer': 'in spring', 'provenance': [{'wikipedia_id': '54092871', 'title': 'Mount Everest in 2017', 'start_paragraph_id': 1, 'start_character': 48, 'end_paragraph_id': 1, 'end_character': 57, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '54092871', 'title': 'Mount Everest in 2017', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 685, 'bleu_score': 0.9285114080363551, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3280213828155725707}, 'section': 'Section::::Abstract.'}]}]