Question: Who founded the record label for Some Mad Hope?

full_context: Document 1: Hawk Nelson: Dunn's departure from the band, with Steingard replacing him on vocals marked the shift in the band's genre from fast-paced pop punk to a softer, contemporary alternative pop rock. On December 11, 2012, Hawk Nelson announced they had signed with Fair Trade Services. "Made" was released on April 2, 2013. The album's release was preceded by the release of the album's debut single on January 15, 2013, "Words", featuring Bart Millard of MercyMe, which reached No. 1 on the Christian Hot AC/CHR charts.
Document 2: Help Wanted Nights: Help Wanted Nights is the fourth album by the Omaha-based band The Good Life, released on September 11, 2007 on Saddle Creek Records. Currently, frontman Tim Kasher has moved to Los Angeles and has written a screenplay entitled "Help Wanted Nights". He has stated that the screenplay acts as a 'counterpart' to the album:
Document 3: High Hopes (Panic! at the Disco song): ``High Hopes ''is a song by Panic! at the Disco released on May 23, 2018 as the second single from their sixth studio album, Pray for the Wicked, through Fueled by Ramen and DCD2 Records.
Document 4: Sixes & Sevens: Sixes & Sevens is Adam Green's fifth solo record, released by Rough Trade Records in Europe on March 7, 2008. A few days later, on March 10, it was released in the UK, followed closely by a US release on March 18. The first single was "Morning After Midnight".
Document 5: Solomon R. Guggenheim: Solomon Robert Guggenheim (February 2, 1861 – November 3, 1949) was an American businessman and art collector. He is best known for establishing the Solomon R. Guggenheim Foundation and the Solomon R. Guggenheim Museum in New York City.
Document 6: Sony Music: Sony Music Entertainment Inc. (sometimes known as Sony Music or by the initials, SME) is an American music corporation managed and operated by Sony Corporation of America (SCA), a subsidiary of Japanese conglomerate Sony Corporation. In 1929, the enterprise was first founded as American Record Corporation (ARC) and, in 1938, was renamed Columbia Recording Corporation, following ARC's acquisition by CBS. In 1966, the company was reorganized to become CBS Records. In 1987, Sony Corporation of Japan bought the company, and in 1991, renamed it SME. It is the world's second largest recorded music company, after Universal Music Group.
Document 7: Some Mad Hope: Some Mad Hope is the sixth studio album by American singer-songwriter Matt Nathanson, released on August 14, 2007 on Vanguard Records. It peaked on the "Billboard" 200 at #60, and peaked at 3 on the Top Independent Albums. "Some Mad Hope" was Nathanson's first album for Vanguard Records, and contained two singles that became AAA airplay staples, "Car Crash" and "Come On Get Higher". In September 2008, Vanguard Records announced "All We Are" and "To the Beat of Our Noisy Hearts" as future singles, Nathanson has expressed live that he feels "Falling Apart" is the hit on the album. To date, it is Nathanson's most successful album. The city skyline that's featured on the album's cover is that of Los Angeles.
Document 8: There's More Where That Came From: There's More Where That Came From is the sixth studio album by Lee Ann Womack, released in 2005. It received numerous awards and critical acclaim and was also Womack's highest selling album since 2000's "I Hope You Dance". The album was Womack's return to a traditional country music style, producing three charting singles between 2004 and 2006: "I May Hate Myself in the Morning", "He Oughta Know That by Now" and "Twenty Years and Two Husbands Ago", which peaked at numbers 10, 22, and 32, respectively, on the Hot Country Songs charts. Womack's ex-husband, Jason Sellers, sang background vocals on "I May Hate Myself in the Morning".
Document 9: Matchbox Twenty: The group reunited and began performing during 2007, with the release of their 'retrospective' album Exile on Mainstream, on October 2, 2007. ``How Far We've Come ''was the first single from the new album, which was followed by the second single,`` These Hard Times''. ``Exile on Mainstream ''included four other new songs and a complete collection of all eleven of their previously released singles. The album was also released in the new MVI (Music Video Interactive) format, which included two video interviews discussing the six new songs and eleven greatest hits, plus extras including a photo gallery, U-MYX (to remix`` How Far We've Come''), buddy icons and wallpapers. ``How Far We've Come ''was released on the band's MySpace page in July 2007, with the video released on September 6, 2007. Matchbox Twenty toured during early 2008 with Alanis Morissette and opener Mutemath. The band began their US tour on January 25, 2008, in Hollywood, FL, and concluded in Las Vegas, NV, on March 18, 2008 before heading to Australia and New Zealand, where the Australian band Thirsty Merc was the supporting act. Following Australia, Matchbox Twenty visited the UK for the first time in five years to play six concerts in Cardiff, Wembley, Birmingham, Glasgow, and Manchester. Matchbox Twenty performed at the 2008 NASCAR Sprint Cup award ceremony.
Document 10: Seymour Solomon: Seymour Solomon (May 23, 1922 – July 18, 2002) was an American music business executive who co-founded Vanguard Records in 1950, with his younger brother Maynard Solomon.
Document 11: Discovery Records: Marx had first become artistic for later Musicraft Records in 1944 before starting his own label. In the 1970s Musicraft Records was revived through Discovery/Trend by Albert Marx in Los Angeles. He also started the Trend AM-PM label in the 1980s to document and promote talented educational, college level jazz ensembles to include the Los Angeles Jazz Workshop, Nashville Jazz Machine and the Fullerton College Jazz Ensemble. His estate sold the Discovery, Trend and Musicraft jazz labels in 1991 to Jac Holzman, which he refashioned into a contemporary label. In 1993, Discovery Records was acquired by Warner Music Group and was absorbed by Sire Records in 1996.
Document 12: Hope (Hawthorne Heights EP): Hope is the second EP of a trilogy released by American rock band Hawthorne Heights through the band's own record label, Cardboard Empire. "Hope" was released for digital download on June 5, 2012. It is also the second release by the band to contain a title track.
Document 13: Solomon and Peres: Solomon and Peres was a music and entertainment retailer, distributor and music production house based in Belfast, Northern Ireland and Ireland from 1924–1981, before becoming acquired by Decca Records. It was owned and operated by brothers-in-law Harold Peres and Maurice Solomon who ran the business until Harold's death in 1967. It is most notable for discovering Van Morrison.
Document 14: Sony Music: Columbia founded Epic Records in 1953. In 1956, Conkling left Columbia, he would help establish the National Academy of Recording Arts and Sciences before eventually becoming the first president of the newly launched Warner Bros. Records, and Goddard Lieberson began the first of two stints as head of the record company. In 1958, Columbia founded another label, Date Records, which initially issued rockabilly music.
Document 15: Warner Records: Warner Bros. Records Parent company Warner Music Group Founded March 19, 1958; 60 years ago (1958 - 03 - 19) Founder James Conkling Distributor (s) Self - distributed (In the US) WEA International (Outside the US) Rhino Entertainment Company (Re-issues) Genre Various Country of origin United States Location Burbank, California, U.S. Official website warnerbrosrecords.com
ground_truth: Maynard Solomon
sub_queries: What was the record label of Some Mad Hope? Answer: Vanguard Records
Vanguard Records >> founded by Answer: Maynard Solomon