Which African country is not connected to the main African continent?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q15', 'id': 0, 'label': 'Africa'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q15304953', 'id': 1, 'label': 'WikiProject African diaspora'}, {'type': 'INTERNAL', 'name_': 'Q386498', 'id': 2, 'label': 'traditional African religion'}], 'links': [{'name_': 'P276', 'source': 2, 'target': 0, 'label': 'location'}, {'name_': 'P5008', 'source': 2, 'target': 1, 'label': 'on focus list of Wikimedia project'}]}