Which Roman emperor had the longest reign?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q1747689', 'id': 0, 'label': 'Ancient Rome'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q12544', 'id': 1, 'label': 'Byzantine Empire'}], 'links': [{'name_': 'P527', 'source': 0, 'target': 1, 'label': 'has part(s)'}]}
The Byzantine Empire was part of Ancient Rome.
The Byzantine Empire has a part of the Old Rome .
Which Roman emperor had the longest reign?</s>The [unused1]Byzantine Empire                [unused2] was part of Ancient Rome.
Which Roman emperor had the longest reign?</s>The Byzantine Empire was part of Ancient Rome.
Which Roman emperor had the longest reign?</s>The [unused1]Byzantine Empire                [unused2] has a part of the Old Rome .
Which Roman emperor had the longest reign?</s>The Byzantine Empire has a part of the Old Rome .
Which Roman emperor had the longest reign?</s>Ancient Rome,0,Ancient Rome,Ancient Rome,has part(s),[unused1]Byzantine Empire[unused2],[unused1]Byzantine Empire[unused2],0,Ancient Rome,[unused1]Byzantine Empire[unused2],0,[unused1]Byzantine Empire[unused2]
Which Roman emperor had the longest reign?</s>Ancient Rome,0,Ancient Rome,Ancient Rome,has part(s),Byzantine Empire,Byzantine Empire,0,Ancient Rome,Byzantine Empire,0,Byzantine Empire