Answer the following question: Information: - Flavia Maxima Fausta (289326) was a Roman Empress, daughter of the Roman Emperor Maximianus. To seal the alliance between them for control of the Tetrarchy, in 307 Maximianus married her to Constantine I, who set aside his wife Minervina in her favour. Constantine and Fausta had been betrothed since 293. - Constantina ( also named Constantia and Constantiana ; b. after 307/before 317 - d. 354 ) , and later known as Saint Constance , was the eldest daughter of Roman emperor Constantine the Great and his second wife Fausta , daughter of Emperor Maximian . Constantina received the title of Augusta by her father , and is venerated as a saint , having developed a medieval legend wildly at variance with what is known of her actual character . In English she is also known as Saint Constance . - Constantine the Great (27 February 272AD 22 May 337AD), also known as Constantine I or Saint Constantine (in the Orthodox Church as Saint Constantine the Great, Equal-to-the-Apostles), was a Roman Emperor from 306 to 337AD. Constantine was the son of Flavius Valerius Constantius, a Roman Army officer, and his consort Helena. His father became "Caesar", the deputy emperor in the west, in 293AD. Constantine was sent east, where he rose through the ranks to become a military tribune under the emperors Diocletian and Galerius. In 305, Constantius was raised to the rank of "Augustus", senior western emperor, and Constantine was recalled west to campaign under his father in Britannia (Britain). Acclaimed as emperor by the army at Eboracum (modern-day York) after his father's death in 306AD, Constantine emerged victorious in a series of civil wars against the emperors Maxentius and Licinius to become sole ruler of both west and east by 324AD. Given the information, choose the subject and object entities that have the relation of 'sister'.
Answer:
constantina , helena