Question: What's the alma mater of Barbara Epstein's spouse?

full_context: Document 1: Joseph Epstein: Joseph Epstein was born in Zamość, Congress Poland. He studied law at Warsaw University. There he became aware of the Communist Party of Poland, and later he joined it.
Document 2: Jake Halpern: He was born in Buffalo, New York, where he attended City Honors School. Halpern later attended Yale University, where he received an undergraduate degree in 1997. He has written for "The New York Times Magazine", "The Wall Street Journal", "The New Yorker", the "New Republic", "Entertainment Weekly", "Slate", "Smithsonian", "GQ", "Sports Illustrated", "New York Magazine" and other publications.
Document 3: Jason Epstein: Born to a Jewish family on August 25, 1928 in Cambridge, Massachusetts. An only child, he attended public schools in Milton, Massachusetts. He graduated from Columbia College of Columbia University in 1949 and was elected to Phi Beta Kappa. He received a Master of Arts degree from Columbia the following year and joined Doubleday and Company as an editorial trainee.
Document 4: Alpha Epsilon Pi: Alpha Epsilon Pi (ΑΕΠ), commonly known as AEPi, is a college fraternity founded at New York University in 1913 by Charles C. Moskowitz. The fraternity has more than 186 active chapters across the United States, Canada, United Kingdom, Austria, Australia, and Israel, and has initiated more than 102,000 members. Although the fraternity is based upon Jewish principles, it is non-discriminatory and is open to all who are willing to espouse its purpose and values.
Document 5: Edgar Rubin: Born to Jewish parents, Rubin was born and raised in Copenhagen. Enrolling at the University of Copenhagen in 1904, he majored in psychology and finished his magister artium examination in philosophy in 1910.
Document 6: Evelyn Einstein: Einstein was born in Chicago; after her birth she was adopted by Hans Albert Einstein. Towards the end of her life, she recounted that as a child she was told she was an illegitimate daughter of Albert Einstein and a ballet dancer; however, she had no documentation supporting this claim. She obtained a Master's degree in Medieval literature at University of California, Berkeley. She was married to Grover Krantz for 13 years from 1964 to about 1977. She then worked briefly as an animal control officer, as a cult deprogrammer, and as a Berkeley, California, reserve police officer.
Document 7: Lea Fastow: Fastow is a native of Houston, Texas, where she was born into a Jewish family. Her mother was Miriam Hadar Weingarten, who was winner of the Miss Israel competition in 1958, her father was a real-estate broker. When she was young her parents divorced and her mother went on to marry to Akiva Nof, and from this marriage was born a half-sister. She graduated from Tufts University, where she met her future husband, and earned an MBA at Northwestern University. She and her husband both attended Congregation Or Ami, a conservative synagogue.
Document 8: Chris Bohjalian: Chris Bohjalian graduated from Amherst College Summa Cum Laude, where he was a member of the Phi Beta Kappa Society. In the mid-1980s, he worked as an account representative for J. Walter Thompson, an ad agency, in New York. He moved with his wife to Lincoln, Vermont, in 1988.
Document 9: Sandy Eisenberg Sasso: Sandy Eisenberg Sasso is the first woman to have been ordained a rabbi in Reconstructionist Judaism. She was ordained by the Reconstructionist Rabbinical College in Philadelphia, on May 19, 1974. She is also the author of many children's books on religious topics. Her son David was born on June 22, 1976, and her daughter Debora was born in 1979.
Document 10: Hallie Ephron: Hallie Ephron was born in Los Angeles, California, to parents Henry and Phoebe Ephron, both East Coast-born-and-raised screenwriters. She is the sister of Nora Ephron, Delia Ephron, and Amy Ephron. She graduated from Barnard College in 1969. She is married and has two daughters. Her family is Jewish.
Document 11: Merla Zellerbach: Merla Zellerbach, née Myrle Carmel Burstein, was born in San Francisco in 1930, the daughter of Rabbi Elliot M. and Lottie Burstein. While attending Stanford University, she met and soon thereafter married Stephen Zellerbach. They had one child, son Gary. Her literary, civic and philanthropic work began at the time of her first marriage. By the time of her death on December 26, 2014, she authored 13 well reviewed novels and five self-help medical books, was a panelist for six years on the ABC TV show Oh My Word, and a columnist for the "San Francisco Chronicle". Subsequently, she was Editor of the "Nob Hill Gazette" for twelve years. Charities she supported and/or worked for included Compassion and Choices, the Coalition on Homelessness San Francisco, the Kidney Foundation, and a dozen more.
Document 12: Ed. Weinberger: Born and raised in Philadelphia, the only son of a Jewish butcher, Ed. Weinberger began his TV career after he dropped out of Columbia University, writing for such stand-up comedians as Dick Gregory, Richard Pryor, and Bill Cosby. His first job in television was writing for "The Tonight Show Starring Johnny Carson". He also wrote for "The Bob Hope Special", "The Bill Cosby Show", and "The Dean Martin Variety Hour".
Document 13: Barbara Epstein: Epstein, née Zimmerman, was born in Boston, Massachusetts, to a Jewish family, and graduated from Radcliffe College in 1949. In 1953, she and editor Jason Epstein began a marriage that lasted 37 years.
Document 14: Goodbye, Columbus: In addition to the title novella, set in New Jersey, "Goodbye, Columbus" contains the five short stories "The Conversion of the Jews", "Defender of the Faith", "Epstein", "You Can't Tell a Man by the Song He Sings", and "Eli, the Fanatic". Each story deals with the concerns of second and third-generation assimilated American Jews as they leave the ethnic ghettos of their parents and grandparents and go on to college, to white-collar professions, and to life in the suburbs.
Document 15: Dwight Macdonald: Macdonald was born in New York City to a prosperous Protestant family from Brooklyn and educated at Phillips Exeter Academy and at Yale University. At university, he was editor of "The Yale Record", the student humor magazine. As a student at Yale, he also was a member of Psi Upsilon and his first job was as a trainee executive for Macy's.
ground_truth: Columbia University
sub_queries: Barbara Epstein >> spouse Answer: Jason Epstein
Jason Epstein >> educated at Answer: Columbia University