Question: Are Adam Gontier and Coko of the same nationality?

full_context: Document 1: CeCe Winans: Priscilla Marie Winans Love known professionally as CeCe Winans (born October 8, 1964) is an American gospel singer, who has sold over 12 million records worldwide and won ten Grammy Awards. She is the best-selling female gospel artist of all time, as of 2015.
Document 2: Art of Dying (band): Art of Dying is a Canadian rock band fronted by Jonny Hetherington. The band is currently signed to Better Noise Records. Bassist Cale Gontier is the cousin of Adam Gontier, the lead singer of Saint Asonia and former lead singer of Three Days Grace. Prior to joining the band, Gontier and guitarist Tavis Stanley played in another band, Thornley.
Document 3: Coko: Cheryl Elizabeth Gamble (born June 13, 1970), better known by her stage name Coko, also known as Cheryl Clemons, is an American R&B recording artist and television personality. Gamble is best known as the lead singer of the American R&B vocal trio Sisters With Voices (SWV). Aside from her R&B career, Gamble also has a solo gospel career.
Document 4: Saint Asonia: Saint Asonia (stylized as SΔINT ΔSONIΔ) is a Canadian-American rock supergroup originally consisting of former Three Days Grace frontman Adam Gontier (lead vocals, rhythm guitar), Mike Mushok from Staind (lead guitar), Corey Lowery from Dark New Day, Eye Empire, Switched, Sevendust, Stereomud and Stuck Mojo (bass, backing vocals), and Rich Beddoe from Finger Eleven (drums). In 2017, Beddoe left the band and was replaced by Mushok's Staind bandmate Sal Giancarelli. Formed in Toronto, Ontario, Canada in 2015 after Gontier's departure from Three Days Grace, they released their debut studio album "Saint Asonia" on July 31, 2015.
Document 5: Human (Three Days Grace album): Human is the fifth studio album by Canadian rock band Three Days Grace. The album was released on March 31, 2015 through RCA Records. This is the group's first album without original lead singer Adam Gontier, and the first with former My Darkest Days lead singer Matt Walst. It debuted at No. 16 on the ""Billboard" 200.
Document 6: Coky Giedroyc: Mary Rose Helen "Coky" Giedroyc, Lady Bowyer-Smyth ( ; born 1962) is a BAFTA-nominated English director known for her work on "Women Talking Dirty", "The Virgin Queen", "The Nativity" and "Penny Dreadful". She is the elder sister of actress and presenter Mel Giedroyc.
Document 7: Cher: Cher ( ; born Cherilyn Sarkisian; May 20, 1946) is an American singer and actress. Sometimes referred to as the Goddess of Pop, she has been described as embodying female autonomy in a male-dominated industry. She is known for her distinctive contralto singing voice and for having worked in numerous areas of entertainment, as well as adopting a variety of styles and appearances during her five-decade-long career.
Document 8: Adam Gontier: Adam Wade Gontier (born May 25, 1978) is a Canadian singer, songwriter and musician. He is the lead singer, rhythm guitarist and main songwriter for Saint Asonia, but is best known as the former lead singer, rhythm guitarist and main songwriter of the Canadian rock band Three Days Grace. Gontier left Three Days Grace on January 9, 2013. In addition to his work with Three Days Grace, he has been involved in collaborations with other bands including Art of Dying and Apocalyptica.
Document 9: Tionne Watkins: Tionne Tenese Watkins (born April 26, 1970), better known by her stage name T-Boz, is an American singer, songwriter, actress, author, and executive producer. Born in Des Moines, Iowa, Watkins rose to fame in the early 1990s as a member of the girl-group TLC. She has won four Grammy Awards for her work with TLC.
Document 10: Devin Townsend: Devin Garrett Townsend (born May 5, 1972) is a Canadian musician, songwriter and record producer. He founded extreme metal band Strapping Young Lad and was its primary songwriter, vocalist, and guitarist in from 1994 to 2007, and has an extensive career as a solo artist.
Document 11: Three Days Grace: Three Days Grace is a Canadian rock band formed in Norwood, Ontario in 1997. Based in Toronto, the band's original line-up consisted of guitarist and lead vocalist Adam Gontier, drummer and backing vocalist Neil Sanderson, and bassist Brad Walst. In 2003, Barry Stock was recruited as the band's lead guitarist. In 2013, Gontier left the band and was replaced by My Darkest Days' vocalist Matt Walst, who is also bassist Brad Walst's brother.
Document 12: The Clark Sisters: The Clark Sisters are an American gospel vocal group consisting of five sisters: Jacky Clark Chisholm (b. 1948), Denise Clark Bradford (b. 1953), Elbernita "Twinkie" Clark-Terrell (b. 1954), Dorinda Clark-Cole (b. 1957), and Karen Clark Sheard (b. 1960). The Clark Sisters are the daughters of gospel musician and choral director Mattie Moss Clark. They are credited for helping to bring gospel music to the mainstream and are considered as pioneers of contemporary gospel. Their biggest crossover hits include: "Is My Living in Vain?", "Hallelujah", "He Gave Me Nothing to Lose", "Endow Me", their hit song "Jesus Is A Love Song", "Pure Gold", "Expect a Miracle", and their largest mainstream crossover gold certified, "You Brought the Sunshine". The Clark Sisters have won three Grammy Awards. With 16 albums to their credit and millions in sales, the Clark Sisters are the highest-selling female gospel group in history.
Document 13: Cheryl Wilson: Cheryl Wilson is a session singer who has had multiple No. 1 dance songs on the UK "Billboard" chart and has performed with many notable artists including Celine Dion, R. Kelly, Alice Peacock, Mavis Staples, The Smashing Pumpkins, Bertie Higgins, Michael Bolton, Bill Withers, Peabo Bryson, David Foster, Josh Grobin, Enrique Iglesias, Nick Carter, KMFDM, Cameo, Rod Stewart, Ray Charles, Natalie Cole, Mel Torme, Spike Lee, Tony Bennett, Peter Cetera, and Martha Wash. She has also sung in commercials for companies such as McDonald's and is a member of the Jazz & Contemporary Studies Faculty at Roosevelt University in Chicago. She contributes vocals to Jim Warner's Chicago musical project, Akalibrio. Her performance on the KMFDM song "Power" was described as "soul-mama vamping".
Document 14: Saint Asonia (album): Saint Asonia is the self-titled debut studio album by rock supergroup Saint Asonia. First announced via YouTube through a teaser in early May 2015, the first single "Better Place" was released on May 16, 2015. This also confirmed the group's lineup, with Adam Gontier as the frontman, Mike Mushok being the guitarist, Corey Lowery as the bassist and Rich Beddoe as the drummer. The album was released on July 31, 2015 through RCA Records. Gontier's uncle Tom Duffy provided the bass tracks for some of the songs from the album, while Lowery was hired afterward. This is also the only studio album from the band to feature drummer Rich Bedoe before he confirmed his departure in 2017
Document 15: A Special Christmas: A Special Christmas is an album by R&B group SWV that was released in the United States on November 18, 1997, by RCA Records. It is a holiday album featuring both cover versions and original material. "A Special Christmas" would be the penultimate album the trio recorded together before they disbanded in 1998. Coko, the group's lead singer, released her first solo album in 1999.
ground_truth: no