Question: Which of the hosts on A-List Listings is not married to Neil Patrick Harris?

full_context: Document 1: David Burtka: David Michael Burtka (born May 29, 1975) is an American actor and professional chef. He is known for his acting roles in theatre and television shows such as "How I Met Your Mother" and "The Play About the Baby". After his role on "How I Met Your Mother", Burtka gained media attention for dating Neil Patrick Harris, whom he later married in 2014.
Document 2: Barney Stinson: Barnabas "Barney" Stinson is a fictional character portrayed by Neil Patrick Harris and created by Carter Bays and Craig Thomas for the CBS television series "How I Met Your Mother". One of the main characters, Barney is a womanizer who uses many 'plays' in his 'playbook' to help him have sex with women. The character is known for his love of wearing expensive suits, laser tag, alcohol and various catchphrases, including "Suit up!", "Legendary", "Wait for it" (often combining the two as "legen—wait for it—dary!"), and "Daddy's home". In later seasons, he has a few serious relationships, marries, divorces, and has a child with an unnamed woman from a one-night stand.
Document 3: Million Dollar Listing Miami: Million Dollar Listing Miami is an American reality television series that premiered June 25, 2014, on Bravo. It features three Miami-based real estate agents – Chad Carroll, Chris Leavitt, and Samantha DeBianchi – as they balance their personal and professional lives. Announced in October 2013, "Million Dollar Listing Miami" is the second spin-off of "Million Dollar Listing Los Angeles", following "Million Dollar Listing New York".
Document 4: List of Property Brothers episodes: "Property Brothers" is a Canadian reality television series that is produced by Cineflix. It airs on W Network in Canada and HGTV in the United States. The series features identical twin brothers Jonathan Scott and Drew Scott (born April 28, 1978) who help home buyers to purchase and renovate "fixer-uppers."
Document 5: Selling LA: Selling Los Angeles is an American television series airing on HGTV.It features real estate brokers from Los Angeles in affluent areas who chronicle selling real estate to various clientele, some of whom are celebrities. Season 1 premiered in October 13, 2011 has been renewed by the network HGTV for four seasons. It is produced by Canadian production company, JV Productions Inc who also produces the show Selling New York in the same franchise. The West Coast show was inspired by the East Coast affiliated show Selling New York and later inspired a European spin-offs on HGTV titled "Selling London". There are several celebrity real estate professionals who have appeared on the show.
Document 6: Property Brothers (franchise): The "Property Brothers" franchise is a media franchise that stars Canadian twins Jonathan and Drew Scott and centers around the selling, purchasing, and renovation of real estate property. The shows also often guest star their older brother J.D. Their first program is "Property Brothers"—produced by Cineflix Media—and airs on the W Network in Canada, HGTV in the US, as well as other networks in over 150 countries. The success of this show led to spin-off series, including "Buying and Selling", "Brother Vs. Brother", "Property Brothers: At Home", "Property Brothers: At Home on the Ranch", and "Brothers Take New Orleans".
Document 7: Craig Thomas (screenwriter): Craig David Thomas is an American television writer who, along with writing partner Carter Bays, has written episodes of "American Dad!", "Oliver Beene", "Quintuplets" and the hit CBS sitcom "How I Met Your Mother", which they created in 2005. In 2012 "How I Met Your Mother" won Best Comedy at the People's Choice Awards.
Document 8: Tom Postilio: Tom Postilio is an American luxury real estate broker, television personality, and former professional singer. He is a broker at Douglas Elliman, the largest real estate brokerage in the New York Metropolitan area and the fourth largest real estate company in the United States. He is known for brokering high-end luxury real estate to a celebrity clientele and is a star of the HGTV reality television show "Selling New York".
Document 9: A-List Listings: A-List Listings is an American reality television series that debuted October 24, 2012, on E!. Hosted by David Burtka and Catt Sadler, the series showcases America's most exclusive and extravagant homes.
Document 10: Egypt Sherrod: Egypt Sherrod is a television, radio personality, author, speaker and home space expert. With over 14 years as a REALTOR, Egypt Sherrod has been named "America's most beloved real estate agent" as host of HGTV's "Flipping Virgins" & "Property Virgins." She's made recurring appearances as the real estate "go-to girl" on NBC's Today Show, CNBC, FOX, CNN, HLN as well as being featured in Rolling Stone, Black Enterprise, Fast Company, Time Out New York and a host of other magazines. Egypt is the author of the Best-Selling "Keep Calm…It’s Just Real Estate: Your No-Stress Guide To Buying A Home," on Running Press/Perseus Books.
Document 11: Neil Patrick Harris: Neil Patrick Harris (born June 15, 1973) is an American actor, comedian, magician, and singer, known primarily for his comedy roles on television and his dramatic and musical stage roles. On television, he is known for playing the title character on "Doogie Howser, M.D." (1989–1993), Barney Stinson on "How I Met Your Mother" (2005–2014, for which he was nominated for four Emmy Awards), and Count Olaf on "A Series of Unfortunate Events" (2017 onward).
Document 12: Buddy Valastro: Bartolo "Buddy" Valastro Jr. (born March 3, 1977) is an American celebrity chef, entrepreneur, and reality television personality of Italian heritage. He is the owner of Carlo's Bakery, as well as the face of Buddy V's Ristorante.
Document 13: Robert Belushi: Robert James Belushi (born October 23, 1980) is an American actor. In films, he is best known for his work on "Sorority Row", "One Small Hitch", and "Valentine's Day". On television, he is best known as Allen ("The Buddy") on the of Spike TV's "The Joe Schmo Show" and Linus the Bartender on the ninth and final season of CBS's "How I Met Your Mother".
Document 14: Burt Hummel: Burt Hummel is a fictional character from the Fox musical comedy-drama series "Glee". The character is portrayed by actor Mike O'Malley, and first appeared on "Glee" in the fourth episode of the first season, "Preggers". Burt was developed by "Glee" creators Ryan Murphy, Brad Falchuk and Ian Brennan. He is the father of gay glee club member Kurt Hummel (Chris Colfer), and works as a mechanic in Lima, Ohio where the series is set. He eventually begins a relationship with Carole Hudson (Romy Rosemont), the mother of another glee club member, and the two marry in the second season episode "Furt". In the third season, Burt runs in a special congressional election and wins. O'Malley was a recurring cast member during the first season, and was upgraded to a series regular for the second season of the show, but returned to the recurring cast for the third season.
Document 15: Laurel House: Laurel House, is an American author, TV personality and international dating coach with a no-games approach to dating. Her YouTube channel has over 25 million hits. House is a monthly guest of KTLA hosting segments for their morning news program and appears as a dating expert on Nightline, The Today Show, E! News, and Good Morning America. In 2016, House was a dating coach on the E! Network original series, "Famously Single" with a cast of celebrities including: Brandi Glanville, the Bachelorette's Josh Murray, Pauly D, Somaya Reece, Aubrey O'Day, Jessica White, Willis McGahee and Calum Best.
ground_truth: Catt Sadler