Question: Are Stuart Murdoch and Lee Sung-min both singers?

full_context: Document 1: Fish (singer): Derek William Dick (born 25 April 1958), better known by his stage name Fish, is a Scottish singer-songwriter and occasional actor. He achieved prominence as the lead singer and lyricist of the neo-progressive rock band Marillion from 1981 until 1988. In his solo career, Fish has explored contemporary pop and traditional folk.
Document 2: Morrissey: Steven Patrick Morrissey (born 22 May 1959), professionally known as Morrissey, is an English singer, songwriter and author. He rose to prominence as the lead singer of the indie rock band the Smiths, which was active from 1982 to 1987. Since then, Morrissey has had a solo career, making the top ten of the UK Singles Chart on ten occasions.
Document 3: Stuart Matthewman: Stuart Colin Matthewman (born 18 August 1960), also known as Cottonbelly, is an English songwriter, multi-instrumentalist, and record producer. With Sade Adu, Paul S. Denman, and Andrew Hale, he gained worldwide fame as the guitarist/saxophonist of the English band Sade. Stuart is also a member of bands, Sweetback and Twin Danger.
Document 4: Lee Min-woo: Lee Min-woo (hangul: 이민우; born 28 July 1979), also known mononymously credited as M as a solo artist, is a South Korean entertainer, known as a member of the South Korean boy band Shinhwa. Lee was the first Shinhwa member to debut as a solo artist in 2003, and has since released three studio albums.
Document 5: Stuart Chatwood: Stuart Chatwood, (born 22 October 1969 in Fleetwood, Lancashire, England) is a Canadian musician, best known as the bass guitar and keyboard player for the rock band The Tea Party. The Tea Party are known for fusing together musical styles of both the Eastern and Western worlds, in what they call "Moroccan roll". In 2001, Chatwood won a Juno Award for the best artwork for a Tea Party album.
Document 6: Stuart Murdoch (football manager): Stuart Murdoch (born September 2, 1955) is a football coach. He is perhaps best known for his spell as manager of Wimbledon between May 2002 and June 2004, during which time the team moved to Milton Keynes in 2003. Wimbledon were renamed Milton Keynes Dons by the new owner in 2004 and Murdoch remained in charge until November of that year.
Document 7: Jun. K: Kim Min-jun (; born January 15, 1988), better known by his stage name Jun. K, is a South Korean singer, songwriter, record producer, rapper, dancer and actor. He is the main vocalist of 2PM.
Document 8: Lee Tae-min: Lee Tae-min (born July 18, 1993), better known by the mononym Taemin, is a South Korean singer and actor. He debuted as a vocalist of the group Shinee in May 2008 under S.M. Entertainment. He began his acting career in 2009 with MBC's comedy "Tae Hee, Hye Kyo, Ji Hyun" as Junsu.
Document 9: Eunhyuk: Lee Hyuk-jae (born April 4, 1986), better known by his stage name Eunhyuk, is a South Korean singer-songwriter and actor. He is a member of the South Korean boy group Super Junior and their subgroups, Super Junior-T and Super Junior-H. In 2011, he joined Super Junior's Mandopop subgroup, Super Junior-M and the duo Donghae & Eunhyuk; active in China and Japan respectively.
Document 10: Arab Strap (band): Arab Strap are a Scottish indie rock band whose core members are Aidan Moffat and Malcolm Middleton. The band were signed to independent record label Chemikal Underground, and split in 2006. As indicated by the title of Belle & Sebastian's third record, "The Boy with the Arab Strap", and by Aidan Moffat's involvement in the two Reindeer Section albums, they were a central part of Glasgow's influential late 1990s music scene.
Document 11: Stuart Murdoch (musician): Stuart Lee Murdoch (born 25 August 1968) is a Scottish musician, writer and filmmaker, and the lead singer and songwriter for the indie pop band Belle and Sebastian.
Document 12: Sunmin: Sunmin (Hangul: 선민, "Katakana": ソンミン, born August 4, 1987) is a South Korean singer who speaks and sings in Korean, Japanese, and English. She debuted in 2006, with the single "Keep Holding You," a collaboration with the Japanese R&B singer Toshinobu Kubota. Her career was initially focused on the Japanese market, but her work became focused in South Korea from 2009 to 2010. She also contributed to original soundtracks of South Korean television series "Master of Study" and "Gloria (2010 TV series)". In 2010 to 2011, she was in the main South Korean musical production of "Jekyll & Hyde" as Lucy. In 2012 to 2013, she reprised her role as Lucy in the South Korean national tour. In spring 2013, Sunmin played Josephine in the South Korean production of "Arsène Lupin", the musical.
Document 13: Scottish music (1980–1989): During the 1980s, Scottish music featured post-punk bands exemplified by Simple Minds and Josef K, and bands like Runrig that remained closer to the Scottish dance music tradition. Folk rock or Celtic rock bands launched in the 1980s included The Waterboys and The Proclaimers. Among the folk singers of the time were Dick Gaughan and Bill Drummond, and Ewan MacColl who died in 1989.
Document 14: Lee Sung-min (singer): Lee Sung-min (born January 1, 1986) is a South Korean singer and actor. He is a member of the South Korean boy band Super Junior and its sub-groups Super Junior-T, Super Junior-H and Super Junior-M.
Document 15: Kim Hee-chul: Kim Hee-chul (born July 10, 1983), better known by the mononym Heechul, is a South Korean singer, songwriter, presenter, and actor. He is a member of South Korean boy group Super Junior and has further participated in its subgroup, Super Junior-T as well as project group with TRAX's Jungmo, M&D. Aside from group activities, he participated in various television dramas, appeared as a radio DJ and television presenter. He is a "League of Legends" Gamer on LoL "Champions" and "Celebrity Event".
ground_truth: yes