Q:Information: - Abba bar Abba (Aramic: , or Father of Samuel, Aramic: ; Cited in the Jerusalem Talmud as Abba bar Ba, Aramic: ) was a Jewish Talmudist who lived in Babylonia, known as an amora of the 2nd and 3rd centuries, distinguished for piety, benevolence, and learning. He is known chiefly through his son Samuel of Nehardea, principal of the Academy of Nehardea, and is nearly always referred to as "Samuel's father." Abba traveled to Palestine, where he entered into relations with R. Judah I, the patriarch, with whose pupil Levi bar Sisi he was on terms of intimate friendship. When Levi died Abba delivered the funeral oration and glorified the memory of his friend. - Babylonia was an ancient Akkadian-speaking state and cultural area based in central-southern Mesopotamia (present-day Iraq). A small Amorite-ruled state emerged in 1894 BC, which contained at this time the minor city of Babylon. Babylon greatly expanded during the reign of Hammurabi in the first half of the 18th century BC, becoming a major capital city. During the reign of Hammurabi and afterwards, Babylonia was called "Mt Akkad" "the country of Akkad" in the Akkadian language. It was often involved in rivalry with its older fellow Akkadian-speaking state of Assyria in northern Mesopotamia. Babylonia briefly became the major power in the region after Hammurabi (fl. c. 1792 1752 BC middle chronology, or c. 1696 1654 BC, short chronology) created a short-lived empire, succeeding the earlier Akkadian Empire, Third Dynasty of Ur, and Old Assyrian Empire; however, the Babylonian empire rapidly fell apart after the death of Hammurabi. - Abba Arikha (175247) (Talmudic Aramaic: ; born: "Abba bar Aybo", Hebrew: ) was a Jewish Talmudist who was born and lived in Kafri, Sassanid Babylonia, known as an amora (commentator on the Oral Law) of the 3rd century who established at Sura the systematic study of the rabbinic traditions, which, using the "Mishnah" as text, led to the compilation of the "Talmud". With him began the long period of ascendancy of the great academies of Babylonia , around the year 220. He is commonly known simply as Rav (or Rab, Hebrew: ). - A judge presides over court proceedings, either alone or as a part of a panel of judges. The powers, functions, method of appointment, discipline, and training of judges vary widely across different jurisdictions. The judge is supposed to conduct the trial impartially and in an open court. The judge hears all the witnesses and any other evidence presented by the barristers of the case, assesses the credibility and arguments of the parties, and then issues a ruling on the matter at hand based on his or her interpretation of the law and his or her own personal judgment. In some jurisdictions, the judge's powers may be shared with a jury. In inquisitorial systems of criminal investigation, a judge might also be an examining magistrate. - Astronomy is a natural science that studies celestial objects and phenomena. It applies mathematics, physics, and chemistry, in an effort to explain the origin of those objects and phenomena and their evolution. Objects of interest include planets, moons, stars, galaxies, and comets; while the phenomena include supernovae explosions, gamma ray bursts, and cosmic microwave background radiation. More generally, all astronomical phenomena that originate outside Earth's atmosphere are within the purview of astronomy. A related but distinct subject, physical cosmology, is concerned with the study of the Universe as a whole. - Samuel of Nehardea or Samuel bar Abba (Hebrew: or ) was a Jewish Talmudist who lived in Babylonia, known as an Amora of the first generation; son of Abba bar Abba and head of the Yeshiva at Nehardea. He was a teacher of halakha, judge, physician, and astronomer. He was born about 165 CE at Nehardea, in Babylonia and died there about 257 CE. As in the case of many other great men, a number of legendary stories are connected with his birth (comp. "Halakot Gedolot," Giin, end; Tos. id. 73a s.v. Mai Ikka). In Talmudic texts, Samuel is frequently associated with Abba Arika, with whom he debated on many major issues. He was the teacher of Rabbi Judah ben Ezekiel. From the little biographical information gleaned from the Talmud, we know that Samuel was never ordained as a Tanna, that he was very precise with his words (Kidd. 70), and that he had a special affinity for astronomy: one of his best known sayings was that "The paths of heaven are as clear to me as the pathways of Nehardea." - An oral law is a code of conduct in use in a given culture, religion or community application, by which a body of rules of human behaviour is transmitted by oral tradition and effectively respected, or the single rule that is orally transmitted. - The Talmud (Hebrew: ' "instruction, learning", from a root ' "teach, study") is a central text of Rabbinic Judaism. It is also traditionally referred to as, a Hebrew abbreviation of ', the "six orders", a reference to the six orders of the Mishnah. The term "Talmud" normally refers to the collection of writings named specifically the Babylonian Talmud "(Talmud Bavli)", although there is also an earlier collection known as the Jerusalem Talmud, or Palestinian Talmud"' "(Talmud Yerushalmi)". When referring to post-biblical periods, namely those of the creation of the Talmud, the Talmudic academies and the Babylonian exilarchate, Jewish sources use the term "Babylonia" long after it had become obsolete in geopolitical terms. - The Mishnah or Mishna ("study by repetition"), from the verb "shanah" , or "to study and review", also "secondary", is the first major written redaction of the Jewish oral traditions known as the "Oral Torah". It is also the first major work of Rabbinic literature. - A physician, medical practitioner, medical doctor or simply doctor is a professional who practises medicine, which is concerned with promoting, maintaining, or restoring health through the study, diagnosis, and treatment of disease, injury, and other physical and mental impairments. Physicians may focus their practice on certain disease categories, types of patients and methods of treatmentknown as specialitiesor they may assume responsibility for the provision of continuing and comprehensive medical care to individuals, families, and communitiesknown as general practice. Medical practice properly requires both a detailed knowledge of the academic disciplines (such as anatomy and physiology) underlying diseases and their treatmentthe "science" of medicineand also a decent competence in its applied practicethe art or "craft" of medicine. - Judah bar Ezekiel ( 220 -- 299 CE ) ( Hebrew : ; also known as Rav Yehuda bar Ezekiel ) , was a Babylonian amora of the 2nd generation . He was the most prominent disciple of Rav ( Abba Arika ) , in whose house he often stayed , and whose son Hiyya was his pupil ( Er. 2b ) . After Rav 's death Judah went to Samuel of Nehardea , who esteemed him highly and called him '' Shinena '' ( = '' sharpwitted '' ; Ber . 36a ; Kid . 32a ) or he with the long teeth ( R ' Hai Gaon in a responsa ) . He remained with Samuel until he founded a school of his own at Pumbedita . He died there in 299 . - Halakha (; also transliterated as halacha, halakhah, halachah or halocho) is the collective body of Jewish religious laws derived from the Written and Oral Torah. It includes the 613 "mitzvot" ("commandments"), subsequent Talmudic and rabbinic law and the customs and traditions compiled in the "Shulchan Aruch" (literally "Prepared Table", but more commonly known as the "Code of Jewish Law"). - Pumbedita (sometimes Pumbeditha, Pumpedita, or Pumbedisa), literally meaning in Aramaic: "The Mouth of the River," was the name of a city in ancient Babylonia close to the modern-day city of Fallujah, in Anbar Province. The city had a large Jewish population and was famed for its Talmudic academy scholarship that, together with the city of Sura, gave rise to the Babylonian Talmud. The academy there was founded by Judah ben Ezekiel in the late third century. The academy was established after the destruction of the academy of Nehardea. Nehardea, being the capital city, was destroyed during the Persian-Palmyrian war. - An astronomer is a scientist in the field of astronomy who concentrates their studies on a specific question or field outside of the scope of Earth. They look at stars, planets, moons, comets and galaxies, as well as many other celestial objects either in observational astronomy, in analyzing the data or in theoretical astronomy. Examples of topics or fields astronomers work on include: planetary science, solar astronomy, the origin or evolution of stars, or the formation of galaxies. There are also related but distinct subjects like physical cosmology which studies the Universe as a whole. - Nehardea or Nehardeah ("river of knowledge") was a city of Babylonia, situated at or near the junction of the Euphrates with the Nahr Malka (also known as Nar Sharri, Ar-Malcha, Nahr el-Malik, and King's Canal), one of the earliest centers of Babylonian Judaism. As the seat of the exilarch it traced its origin back to King Jehoiachin. According to Sherira Gaon (Letter of Sherira Gaon, in Neubauer, "M. J. C." i. 26), Jehoiachin and his coexilarchs built a synagogue at Nehardea, for the foundation of which they used earth and stones which they had brought, in accordance with the words of Psalms 102:15, from Jerusalem (comp. a similar statement in regard to the founding of the Jewish neighbourhood in the Persian city of Ispahan, in "Monatsschrift," 1873, pp.129, 181). For this reason it was called 'The Synagogue that Slid and Settled'. This was the synagogue called "Shaf we-Yatib," to which there are several references dating from the third and fourth centuries (R. H. 24b; Avodah Zarah 43b; Niddah 13a), and which Abaye asserts (Meg. 29a) was the seat of the Shekhinah in Babylonia. The Aaronic portion of the Jewish population of Nehardea was said to be descended from the slaves of Pashur ben Immer, the contemporary of King Jehoiachin (Kiddushin 70b). Given the information, choose the subject and object entities that have the relation of 'occupation'.
A:
judah bar ezekiel , rabbi