Which game is in the Final Fantasy series and has Lightning as the main protagonist?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q1569167', 'id': 0, 'label': 'video game character'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q12391356', 'id': 1, 'label': 'Final Fantasy'}, {'type': 'INTERNAL', 'name_': 'Q1424180', 'id': 2, 'label': 'Zidane Tribal'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q2066495', 'id': 3, 'label': 'Lightning'}], 'links': [{'name_': 'P31', 'source': 2, 'target': 0, 'label': 'instance of'}, {'name_': 'P8345', 'source': 2, 'target': 1, 'label': 'media franchise'}, {'name_': 'P31', 'source': 3, 'target': 0, 'label': 'instance of'}, {'name_': 'P8345', 'source': 3, 'target': 1, 'label': 'media franchise'}]}