What is the last Grand Slam that Roger Federer won?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q847', 'id': 0, 'label': 'tennis'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q1426', 'id': 1, 'label': 'Roger Federer'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q102113', 'id': 2, 'label': 'Grand Slam'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q577107', 'id': 3, 'label': '2008 Australian Open'}], 'links': [{'name_': 'P641', 'source': 1, 'target': 0, 'label': 'sport'}, {'name_': 'P641', 'source': 2, 'target': 0, 'label': 'sport'}, {'name_': 'P641', 'source': 3, 'target': 0, 'label': 'sport'}]}
Roger Federer is a tennis player who played in the 2008 Australian Open. Roger Federer is a tennis Grand Slam champion.
Roger Federer and the 2008 Australian Open are tennis matches . The Grand Slam is also a tennis sport .
What is the last Grand Slam that Roger Federer won?</s>Roger Federer is a tennis player who played in the [unused1]2008 Australian Open                [unused2] . Roger Federer is a tennis Grand Slam champion.
What is the last Grand Slam that Roger Federer won?</s>Roger Federer is a tennis player who played in the 2008 Australian Open. Roger Federer is a tennis Grand Slam champion.
What is the last Grand Slam that Roger Federer won?</s>Roger Federer and the [unused1]2008 Australian Open                [unused2] are tennis matches . The Grand Slam is also a tennis sport .
What is the last Grand Slam that Roger Federer won?</s>Roger Federer and the 2008 Australian Open are tennis matches . The Grand Slam is also a tennis sport .
What is the last Grand Slam that Roger Federer won?</s>tennis,0,tennis,tennis,0,Roger Federer,tennis,0,Grand Slam,tennis,0,[unused1]2008 Australian Open[unused2],Roger Federer,sport,tennis,Roger Federer,0,Roger Federer,Roger Federer,0,Grand Slam,Roger Federer,0,[unused1]2008 Australian Open[unused2],Grand Slam,sport,tennis,Grand Slam,0,Roger Federer,Grand Slam,0,Grand Slam,Grand Slam,0,[unused1]2008 Australian Open[unused2],[unused1]2008 Australian Open[unused2],sport,tennis,[unused1]2008 Australian Open[unused2],0,Roger Federer,[unused1]2008 Australian Open[unused2],0,Grand Slam,[unused1]2008 Australian Open[unused2],0,[unused1]2008 Australian Open[unused2]
What is the last Grand Slam that Roger Federer won?</s>tennis,0,tennis,tennis,0,Roger Federer,tennis,0,Grand Slam,tennis,0,2008 Australian Open,Roger Federer,sport,tennis,Roger Federer,0,Roger Federer,Roger Federer,0,Grand Slam,Roger Federer,0,2008 Australian Open,Grand Slam,sport,tennis,Grand Slam,0,Roger Federer,Grand Slam,0,Grand Slam,Grand Slam,0,2008 Australian Open,2008 Australian Open,sport,tennis,2008 Australian Open,0,Roger Federer,2008 Australian Open,0,Grand Slam,2008 Australian Open,0,2008 Australian Open