Premise: Justinian I ( [ dʒʌˈstɪniən ] Flavius Petrus Sabbatius Iustinianus Augustus Φλάβιος Πέτρος Σαββάτιος Ἰουστινιανός Flávios Pétros Sabbátios Ioustinianós ) ( 482 14 November 565 ) , traditionally known as Justinian the Great and also Saint Justinian the Great in the Eastern Orthodox Church , was a Byzantine ( East Roman ) emperor from 527 to 565 .
Hypothesis: Justinian I was an East Roman emperor.
Label: ENTAILMENT