Who was the third United Nations Secretary General?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q1065', 'id': 0, 'label': 'United Nations'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q13780930', 'id': 1, 'label': 'worldwide'}, {'type': 'INTERNAL', 'name_': 'Q47002373', 'id': 2, 'label': 'International Day of Sign Languages'}], 'links': [{'name_': 'P170', 'source': 2, 'target': 0, 'label': 'creator'}, {'name_': 'P2541', 'source': 2, 'target': 1, 'label': 'operating area'}]}