Which series started first, Mortal Kombat or Street Fighter?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q48263', 'id': 0, 'label': 'Xbox 360'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q288035', 'id': 1, 'label': 'Street Fighter'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q241163', 'id': 2, 'label': 'Mortal Kombat'}, {'type': 'INTERNAL', 'name_': 'Q338486', 'id': 3, 'label': 'Street Fighter X Tekken'}, {'type': 'INTERNAL', 'name_': 'Q4044539', 'id': 4, 'label': 'Mortal Kombat Arcade Kollection'}], 'links': [{'name_': 'P400', 'source': 3, 'target': 0, 'label': 'platform'}, {'name_': 'P179', 'source': 3, 'target': 1, 'label': 'part of the series'}, {'name_': 'P400', 'source': 4, 'target': 0, 'label': 'platform'}, {'name_': 'P179', 'source': 4, 'target': 2, 'label': 'part of the series'}]}