Question: Which profession did Zane Grey and Chaim Potok share?

full_context: Document 1: Romer Zane Grey: Romer Zane Grey (October 1, 1909 - March 8, 1976) was the eldest son of novelist Zane Grey. Romer was born October 1, 1909 at Lackawaxen, Penn. Zane and Dolly Grey had three children: Romer, Betty, and Loren. Romer was named after an uncle Romer Carl Grey, known as Reddy Grey.
Document 2: The Chosen (1981 film): The Chosen is a 1981 drama film directed by Jeremy Kagan, based on the bestselling book of the same name by Chaim Potok published in 1967. It stars Maximilian Schell and Rod Steiger. It won three awards at the 1981 Montréal World Film Festival. It was distributed by Analysis Film Releasing Corp. and 20th Century Fox.
Document 3: Isaac in America: A Journey with Isaac Bashevis Singer: Isaac in America: A Journey with Isaac Bashevis Singer
Document 4: Zane Grey Estate: The Zane Grey Estate is a National Register of Historic Places structure (site #02001187) in Altadena, California. It was placed on the Register in 2002 for its association with author Zane Grey.
Document 5: Davita's Harp: Davita's Harp is a novel by Chaim Potok, published in 1985. It is the only one of Potok's full-length novels to feature a female protagonist.
Document 6: Chaim Potok: Chaim Potok (February 17, 1929 – July 23, 2002) was an American Jewish author and rabbi. Potok is most famous for his first book "The Chosen" (1967), which was listed on "The New York Times’" best seller list for 39 weeks and sold more than 3,400,000 copies.
Document 7: Louis L'Amour: Louis Dearborn L'Amour ( ; March 22 1908 –June 10 1988) was an American novelist and short story writer. His books consisted primarily of Western novels (though he called his work 'frontier stories'); however, he also wrote historical fiction ("The Walking Drum"), science fiction ("The Haunted Mesa"), non-fiction ("Frontier"), as well as poetry and short-story collections. Many of his stories were made into films and John Wayne once made the dubious assertion that L'Amour was the most interesting man in the world. L'Amour's books remain popular and most have gone through multiple printings. At the time of his death almost all of his 105 existing works (89 novels, 14 short-story collections, and two full-length works of nonfiction) were still in print, and he was considered "one of the world's most popular writers".
Document 8: Zane Grey Museum: The Zane Grey Museum in Lackawaxen Township, Pennsylvania, United States, is a former residence of the author Zane Grey and is now maintained as a museum and operated by the National Park Service (NPS). It is located on the upper Delaware River and is on the National Register of Historic Places. It contains many photographs, artworks, books, furnishings, and other objects of interest associated with Grey and his family.
Document 9: The Gift of Asher Lev: The Gift of Asher Lev is a novel by Chaim Potok, published in 1990. It is a sequel to Potok's novel "My Name Is Asher Lev" (1972).
Document 10: Zane Grey Cabin: The Zane Grey Cabin on the Rogue River in Oregon is a cabin built in 1926 by Zane Grey (1872–1939), the master author of the American West. Grey used it as a frequent retreat until 1935.
Document 11: Zane: Zane is a surname which was popularized as a given name through the popular American writer Zane Grey. Grey's given name was Pearl but he instead adopted his middle name, from his mother's family name, as a pen name.
Document 12: Lewis Wetzel: Lewis Wetzel (February 24, 1763 -1808) was a frontiersman and Native American fighter who roamed the hills of western Virginia and Ohio. Wetzel County, West Virginia, is named for him. Zane Grey, the great Western novelist, wrote about Wetzel in his books "Spirit of the Border", "Betty Zane", and "The Last Trail". Wetzel is regarded as a hero by many Americans, a lesser-known version of Daniel Boone. He was accused in 1788 of the murder of peaceful Native Americans, but he escaped and there was no trial.
Document 13: Wanderings: Chaim Potok's History of the Jews: Wanderings: Chaim Potok's History of the Jews (ISBN  ) was first published in 1978 by Alfred A. Knopf, New York. According to S. Lillian Kremer in "Dictionary of Literary Biography", The book is "a compendium of scholarship about Jewish civilization and its relation to the myriad cultures with which Judaism has come into contact."
Document 14: My Name Is Asher Lev: My Name Is Asher Lev is a novel by Chaim Potok, an American author and rabbi. The book's protagonist is Asher Lev, a Hasidic Jewish boy in New York City. Asher is a loner with artistic inclinations. His art, however, causes conflicts with his family and other members of his community. The book follows Asher's maturity as both an artist and a Jew.
Document 15: Zane Grey: Pearl Zane Grey (January 31, 1872 – October 23, 1939) was an American dentist and author best known for his popular adventure novels and stories associated with the Western genre in literature and the arts; he idealized the American frontier. "Riders of the Purple Sage" (1912) was his best-selling book. In addition to the commercial success of his printed works, they had second lives and continuing influence when adapted as films and television productions. His novels and short stories have been adapted into 112 films, two television episodes, and a television series, "Dick Powell's Zane Grey Theater".
ground_truth: author