How many Mortal Kombat games are available for Nintendo Switch?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q30', 'id': 0, 'label': 'United States of America'}, {'type': 'INTERNAL', 'name_': 'Q1860', 'id': 1, 'label': 'English'}, {'type': 'INTERNAL', 'name_': 'Q54893842', 'id': 2, 'label': 'Jump Force'}, {'type': 'INTERNAL', 'name_': 'Q24050047', 'id': 3, 'label': 'Civilization VI'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q19610114', 'id': 4, 'label': 'Nintendo Switch'}, {'type': 'INTERNAL', 'name_': 'Q388796', 'id': 5, 'label': 'Sub-Zero'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q241163', 'id': 6, 'label': 'Mortal Kombat'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q664637', 'id': 7, 'label': 'John Tobias'}], 'links': [{'name_': 'P17', 'source': 0, 'target': 0, 'label': 'country'}, {'name_': 'P37', 'source': 0, 'target': 1, 'label': 'official language'}, {'name_': 'P17', 'source': 1, 'target': 0, 'label': 'country'}, {'name_': 'P407', 'source': 2, 'target': 1, 'label': 'language of work or name'}, {'name_': 'P400', 'source': 2, 'target': 4, 'label': 'platform'}, {'name_': 'P495', 'source': 3, 'target': 0, 'label': 'country of origin'}, {'name_': 'P407', 'source': 3, 'target': 1, 'label': 'language of work or name'}, {'name_': 'P400', 'source': 3, 'target': 4, 'label': 'platform'}, {'name_': 'P1441', 'source': 5, 'target': 6, 'label': 'present in work'}, {'name_': 'P170', 'source': 5, 'target': 7, 'label': 'creator'}, {'name_': 'P27', 'source': 7, 'target': 0, 'label': 'country of citizenship'}, {'name_': 'P1412', 'source': 7, 'target': 1, 'label': 'languages spoken, written or signed'}]}