Instructions: In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).
Input: Context: Michael IX Palaiologos or Palaeologus ("Mikhal IX Palaiologos"), (17 April 1277  12 October 1320, Thessalonica, reigned as Byzantine co-emperor with full imperial style 1294/12951320. Michael IX was the eldest son of Andronikos II Palaiologos and Anna of Hungary (1260-1281), daughter of Stephen V of Hungary., Basil Megas Komnenos (died April 6, 1340) was Emperor of Trebizond from August 1332 until his death in 1340. Although Basil's reign was a period of stability during the civil war that dominated the pocket empire during the second quarter of the 14th century, some of that conflict had its origins in his marital actions., Andronikos III Palaiologos (25 March 1297  15 June 1341), commonly Latinized as Andronicus III Palaeologus, was Byzantine emperor from 1328 to 1341. Born Andronikos Doukas Angelos Komnenos Palaiologos, he was the son of Michael IX Palaiologos and Rita of Armenia. He was proclaimed co-emperor in his youth, before 1313, and in April 1321 he rebelled in opposition to his grandfather, Andronikos II Palaiologos. He was formally crowned co-emperor on February 1325, before ousting his grandfather outright and becoming sole emperor on 24 May 1328., Irene Palaiologina ( Greek :   , Eirn Palaiologina ) , ( c. 1315 -- after 1341 ) was Empress of Trebizond from April 6 , 1340 to July 17 , 1341 . She was an illegitimate daughter of the Byzantine Emperor Andronikos III Palaiologos , and she married Emperor Basil of Trebizond in 1335 ., An emperor (through Old French "empereor" from ) is a monarch, usually the sovereign ruler of an empire or another type of imperial realm. Empress, the female equivalent, may indicate an emperor's wife ("empress consort"), mother ("empress dowager"), or a woman who rules in her own right ("empress regnant"). Emperors are generally recognized to be of a higher honour and rank than kings. In Europe the title of Emperor was, since the Middle Ages, considered equal or almost equal in dignity to that of Pope, due to the latter's position as visible head of the Church and spiritual leader of Western Europe. The Emperor of Japan is the only currently reigning monarch whose title is translated into English as "Emperor"., Rita of Armenia (10/11 January 1278  July 1333) was a Byzantine Empress consort. She was a daughter of King Levon II of Armenia and Queen Keran. She was the wife of Byzantine co-emperor Michael IX Palaiologos, making her a junior empress-consort of the Byzantine Empire. In 1317, she became the only empress upon the death of the senior empress, Irene of Montferrat. She was known as Maria in Constantinople., Subject: irene palaiologina of trebizond, Relation: country_of_citizenship, Options: (A) armenia (B) byzantine empire (C) hungary (D) japan (E) realm
Output:
byzantine empire