Question: What is the enrollment of undergraduates at the school the person was educated at who owns the gold spike in the city where radio station KMXB was based in 1997?

full_context: Document 1: LinkExchange: It was founded in March 1996 by 23-year-old Harvard graduates Tony Hsieh (who later went on to invest in and become the CEO of Zappos) and Sanjay Madan. Ali Partovi later joined them as a third partner in August 1996. In November 1996, when the company consisted of about 10 people, it moved from Hsieh's and Madan's living room to an office in San Francisco. In May 1997, the company received US$3 million in funding from Sequoia Capital.
Document 2: Harvard University: Established originally by the Massachusetts legislature and soon thereafter named for John Harvard (its first benefactor), Harvard is the United States' oldest institution of higher learning, and the Harvard Corporation (formally, the President and Fellows of Harvard College) is its first chartered corporation. Although never formally affiliated with any denomination, the early College primarily trained Congregationalist and Unitarian clergy. Its curriculum and student body were gradually secularized during the 18th century, and by the 19th century Harvard had emerged as the central cultural establishment among Boston elites. Following the American Civil War, President Charles W. Eliot's long tenure (1869–1909) transformed the college and affiliated professional schools into a modern research university; Harvard was a founding member of the Association of American Universities in 1900. James Bryant Conant led the university through the Great Depression and World War II and began to reform the curriculum and liberalize admissions after the war. The undergraduate college became coeducational after its 1977 merger with Radcliffe College.
Document 3: Adult contemporary music: In addition to Celine Dion, who has had significant success on this chart, other artists with multiple number ones on the AC chart in the 1990s include Mariah Carey, Phil Collins, Michael Bolton, Whitney Houston and Shania Twain. Newer female singer-songwriters such as Sarah McLachlan, Natalie Merchant, Jewel, Melissa Etheridge and Sheryl Crow also broke through on the AC chart during this time.
Document 4: Gold Spike (property): Gold Spike (formerly Gold Spike Hotel & Casino) is a bar, lounge, residential building, and former boutique 112 - room, seven floor hotel. It is connected with the Oasis at the Gold Spike, a 50 - room three floor hotel located in downtown Las Vegas. It was owned by entrepreneur Tony Hsieh and his Downtown Project, having bought it from The Siegel Group; and the casino was operated by Golden Gaming.
Document 5: Adult contemporary music: Since the mid-2000s, the mainstreaming of bands like Wilco and Feist have pushed indie rock into the adult contemporary conversation. In the early 2010s, indie musicians like Imagine Dragons, Mumford & Sons, Of Monsters & Men, The Lumineers and Ed Sheeran also had indie songs that crossed over to the adult contemporary charts.
Document 6: Reid Hoffman: Hoffman co-founded LinkedIn in December 2002 with two former colleagues from SocialNet (including Allen Blue), a former college classmate and a former colleague from his time at Fujitsu. It launched on May 5, 2003, as one of the first business-oriented online social networks. Peter Thiel and Keith Rabois, colleagues of Hoffman's at PayPal, invested in LinkedIn. By November 2014, LinkedIn had over 332 million members in more than 200 countries and territories. The site allows registered users to create professional profiles and connect with each other. Users can invite anyone (whether a site user or not) to become a connection. According to Forbes, "LinkedIn is, far and away, the most advantageous social networking tool available to job seekers and business professionals today."Hoffman was LinkedIn's founding CEO for the first four years before becoming chairman and president of products in February 2007. He became executive chairman in June 2009. With the IPO of LinkedIn on May 19, 2011, Hoffman owns a stake worth an estimated $2.34 billion, not including any potential benefits from Greylock Partners, where he was named a partner in 2009. Hoffman believes that many people still do not know how to use its service and it is LinkedIn's job to help them out. In an interview, Hoffman said that "you have to think proactively about how to use a tool that enables your ability to move in ways that you weren't able to move before, and most of people are not very good at that".Microsoft proposed to acquire LinkedIn on June 13, 2016 for $26.2 billion in cash. Hoffman became a Microsoft board member on March 14, 2017.
Document 7: Golden Nugget Las Vegas: The Golden Nugget was originally built in 1946, making it one of the oldest casinos in the city. Jackie Gaughan at one time owned a stake in the hotel as part of his many downtown properties. Steve Wynn bought a stake in the Nugget, which he increased so that, in 1973, he became the majority shareholder, and the youngest casino owner in Las Vegas. In 1977 he opened the first hotel tower and the resort earned its first four diamond rating from Mobil Travel Guide. It was the foundation for Wynn's rise to prominence in the casino industry. The second hotel tower opened in 1984 along with the showroom, and the third tower was opened in 1989. In 2000, the Golden Nugget (and all of Mirage Resorts' other properties) was sold to MGM Grand, Inc. (later named MGM Mirage).
Document 8: Harvard University: Harvard's 2,400 professors, lecturers, and instructors instruct 7,200 undergraduates and 14,000 graduate students. The school color is crimson, which is also the name of the Harvard sports teams and the daily newspaper, The Harvard Crimson. The color was unofficially adopted (in preference to magenta) by an 1875 vote of the student body, although the association with some form of red can be traced back to 1858, when Charles William Eliot, a young graduate student who would later become Harvard's 21st and longest-serving president (1869–1909), bought red bandanas for his crew so they could more easily be distinguished by spectators at a regatta.
Document 9: Admerasia: Admerasia was founded in 1993 by Zan Ng, a commercial photographer. He began the company with a personal investment of $250,000 that he and his brothers had saved up. In 1994, advertising executive Joseph Liu joined the company as a partner. Liu previously owned his own advertising company but joined Admerasia as he no longer wanted to deal with the risks associated with entrepreneurship. Both Ng and Liu came to the United States in 1975 in hopes of finding work as artists, Ng without any possessions and Liu with only a rice cooker.
Document 10: Harvard University: The Harvard Crimson competes in 42 intercollegiate sports in the NCAA Division I Ivy League. Harvard has an intense athletic rivalry with Yale University culminating in The Game, although the Harvard–Yale Regatta predates the football game. This rivalry, though, is put aside every two years when the Harvard and Yale Track and Field teams come together to compete against a combined Oxford University and Cambridge University team, a competition that is the oldest continuous international amateur competition in the world.
Document 11: Adult contemporary music: The "soft" AC format has reinvented in the late 2000s/early 2010s as a result of its declining relevance, adopting a more upmarket, middle-of-the-road approach, with a selection of "oldies" (usually from the 1960s/70s onwards), primarily rock, jazz, R&B and pop music. Newer songs are more often (but not limited to) "easy listening" fare, this amount varying depending on the age of the station's target demographic.
Document 12: The Linq: The Linq (formerly Flamingo Capri, Imperial Palace and The Quad) is a 2,640 - room hotel, casino and shopping promenade on the Las Vegas Strip in Paradise, Nevada. It is owned and operated by Caesars Entertainment Corporation. As of 2012, the casino is 32,890 sq ft (3,056 m) with 830 slot machines, 55 table games, and a race and sports book.
Document 13: Adult contemporary music: Modern adult contemporary can be a variation of hot AC, and includes modern rock titles in its presentation. In 1997, Mike Marino of KMXB in Las Vegas described the format as reaching "an audience that has outgrown the edgier hip-hop or alternative music but hasn't gotten old and sappy enough for the soft ACs." The format's artists included Alanis Morissette, Counting Crows, Gin Blossoms, Bon Jovi, Train, No Doubt, The Script, The Cranberries, Lifehouse, Sarah McLachlan, Sara Bareilles, John Mayer, Jewel, and Ingrid Michaelson. Unlike modern rock, which went after 18-34 men, this format appealed to women.
Document 14: Harvard University: Undergraduate admission to Harvard is characterized by the Carnegie Foundation as "more selective, lower transfer-in". Harvard College accepted 5.3% of applicants for the class of 2019, a record low and the second lowest acceptance rate among all national universities. Harvard College ended its early admissions program in 2007 as the program was believed to disadvantage low-income and under-represented minority applicants applying to selective universities, yet for the class of 2016 an Early Action program was reintroduced.
Document 15: Nugget Casino Resort: Nugget Casino Resort (formerly Dick Graves' Nugget and John Ascuaga's Nugget) is a hotel and casino located in Sparks, Nevada. It is owned and operated by Marnell Gaming. The main portion of the casino consists of two 29-story towers nestled between Interstate 80 and the Union Pacific rail yard. There are additional attached buildings underneath and across I-80 from the towers. It is located in Downtown Sparks at the Victorian Square.
ground_truth: 7,200
sub_queries: Where was the radio station KMXB based in 1997? Answer: Las Vegas
who owns the gold spike in Las Vegas Answer: Tony Hsieh
Tony Hsieh >> educated at Answer: Harvard
What is the enrollment of undergraduates at Harvard ? Answer: 7,200