Who was the first person to reach the summit of Mt. Everest?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q513', 'id': 0, 'label': 'Mount Everest'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q21068106', 'id': 1, 'label': 'list of Mount Everest summiters by number of times to the summit'}], 'links': [{'name_': 'P2354', 'source': 0, 'target': 1, 'label': 'has list'}]}