Question: Are either Robert Lamm or Fher Olvera British musicians?

full_context: Document 1: Luis Miguel: Luis Miguel Gallego Basteri (born April 19, 1970) is a Mexican singer and an icon in Latin America, he is often referred to as "El Sol de México" (The Sun of Mexico). He is one of the most successful artists in Latin American history, having successfully performed in a wide range of musical styles, including pop, ballads, boleros and mariachi. To date, he has sold over 100 million records worldwide.
Document 2: Peter Cetera: Peter Paul Cetera ( ; born September 13, 1944) is an American singer, songwriter, and bassist best known for being an original member of the rock band Chicago (1967–1985), before launching a successful solo career. His career as a recording artist encompasses seventeen albums with Chicago and eight solo albums.
Document 3: Beginnings (Chicago song): "Beginnings" is a song written by Robert Lamm for the rock band Chicago Transit Authority and recorded for their debut album "Chicago Transit Authority", released in 1969. Lamm also provided lead vocals. The song was the band's second single (after "Questions 67 and 68"), but failed to chart on its initial release.
Document 4: Maná en Vivo: Maná en Vivo (in English: Maná Live) is the first live album (and seventh overall) released by the Mexican rock band Maná. After Iván González and César López left the group, Fher Olvera, Alex González, and Juan Calleros continued to perform as a trio. They recorded "Maná en Vivo" in August and September 1994 during their ¿Dónde Jugarán Los Niños? World Tour. The double CD includes material from concerts at the Universal Amphitheatre in Los Angeles; the Sports Arena in San Diego; the Aragon Ballroom in Chicago; the Teatro Gran Rex in Buenos Aires, Argentina; the Estadio de Chile in Santiago, Chile; and the Sala Estandard in Barcelona, Spain. Olvera, González, and Calleros were joined by Carlos Orozco on guitar, Sheila Ríos on vocals, and Juan Carlos Toribio on keyboards.
Document 5: Vicente Fernández: Vicente "Chente" Fernández Gómez (born 17 February 1940) is a Mexican retired singer, actor, and film producer. Nicknamed "El Rey de la Música Ranchera" (The King of Ranchera Music), Fernández started his career singing for tips on the street, and has since become a cultural icon, recording more than 50 albums and contributing to more than 30 films. His repertoire consists of rancheras and other Mexican classics. He is accompanied live by a mariachi group, but he is not technically a mariachi musician, as he plays no instrument live. Vicente's fame rose after the death of Javier Solis (El Rey del Bolero Ranchero). Vicente was inspired during many of his performances, by his long time friend Celso Baez.
Document 6: Fher Olvera: José Fernando Emilio "Fher" Olvera Sierra, was born in December 8, 1959, (Guadalajara, Jalisco, Mexico). He is the secondary guitarist, composer, and lead singer for the Mexican rock band Maná, the most successful Latin American band of all time with over 40 million albums sold worldwide.
Document 7: La Barranca: La Barranca has been a successful ongoing outfit for over a decade. Based in Mexico City, they are led by guitarist and songwriter José Manuel Aguilera, who previously and concurrently worked with Sangre Azteka, Jaguares, Cecilia Toussaint, Steven Brown/Nine Rain (Tuxedomoon), and more. He has an unusually economical style of playing that concentrates on great rhythms, superb tone, and very melodic solos. After the original lineup—Aguilera, Federico Fong (bass), Alfonso Andre (drums), all of whom were guest members of Jaguares with former Caifanes frontman Saúl Hernández—went its separate ways, a second version of the band included Santa Sabina guitar virtuoso Alex Otaola and the extremely flexible rhythm section of brothers Jose María ("Chema") and Alonso Arreola. The band's sound effortlessly moves from flat out rock to fusion-ish jamming and passes through a kind of Mexican folk influence along the way. Aguilera is a good singer with a talent for finding simple melodies amidst rather complex songs. On "El Fluir" the band decided to record live and to cut back on the keyboard and programmed additions to their music. Surprisingly, the result was not an over-the-top jamfest but rather a very tightly arranged set of songs that hinted at the overwhelming power they could possess in concert. The two guitar interplay between Aguilera and Otaola was highly impressive as they explored all forms of playing together and against one another (with Otaola pulling all sorts of radical sounds out of his guitar). "El Fluir" was their first US release since "Tempestad" in 1998. This edition was further sweetened by the inclusion of a previously unreleased bonus track and a video for the first single "Pare de Sufrir."
Document 8: Robert Balderrama: Robert "Bobby"Lee Balderrama, born in O'Donnell, Texas, grew up in Saginaw, Michigan, is the lead guitarist for the band Question Mark & the Mysterians and was so when they recorded their first hit song 96 Tears. He later played with Joe King Carrasco and the Crowns on the "Bandido Rock" album of 1987. He still periodically plays shows with the original members of ? and the Mysterians. Robert Lee Balderrama also has formed a Smooth Jazz group "Robert Lee Revue"
Document 9: Robert Palmer (singer): Robert Allen Palmer (19 January 1949 – 26 September 2003) was an English singer-songwriter, musician, and record producer. He was known for his distinctive, soulful voice, eclectic mix of musical styles on his albums, combining soul, jazz, rock, pop, reggae, blues, and sartorial acumen. He found success both in his solo career and with the Power Station, and had Top 10 songs in both the UK and the US.
Document 10: Bill Champlin: William Bradford "Bill" Champlin (born May 21, 1947 in Oakland, California) is an American singer, guitarist, keyboard player, arranger, producer, and songwriter. His performance work is principally associated with the bands Chicago and the Sons of Champlin. He has won multiple Grammy Awards for songwriting.
Document 11: Robert Lamm: Robert William Lamm (born October 13, 1944) is an American keyboardist, singer and songwriter who came to fame as a founding member of the pop rock band Chicago. He wrote many of the band's biggest hits, including "Questions 67 & 68", "Does Anybody Really Know What Time It Is?", "Beginnings", "25 or 6 to 4", "Saturday in the Park", "Dialogue (Part I & II)" and "Harry Truman".
Document 12: Rob Hyman: Robert Andrew "Rob" Hyman (born April 24, 1950 in Meriden, Connecticut, U.S.) is an American singer, songwriter, keyboard player, accordion player, producer, arranger and recording studio owner, best known for being a founding member of the rock band The Hooters.
Document 13: Lo Esencial de Maná: Lo Essential de Maná is a three CD box set of the first three studio albums under recording label WEA Latina from Mexican rock band Maná. Since they burst on the scene from Guadalajara, Mexico, in the early 1990s, Maná have reigned as the premier Latin rock band of our time. Led by the powerful and passionate vocalist-composer Fher Olvera, drummer Alex González, guitarist Sergio Vallín, and bassist Juan Diego Calleros blend American power rock with Hispanic folk idioms and Afro-Caribbean rhythms. This three-CD box set compilation contains the band's greatest hits, from their début album, "Falta Amor" to their third album "Cuando Los Ángeles Lloran". A total of 37 songs from their favorites appear, including "Vivir Sin Aire," "Dónde Jugarán los Niños?", and the reggae-tinged "Selva Negra." Other favorites, such as "La Chula" and "Como Te Deseo," are remixed as pop-dance numbers.
Document 14: Bob Dylan: Bob Dylan ( ; born Robert Allen Zimmerman, May 24, 1941) is an American singer, songwriter, musician, painter, and writer. He has been influential in popular music and culture for more than five decades. Much of his most celebrated work dates from the 1960s, when he became a reluctant "voice of a generation" with songs such as "Blowin' in the Wind" and "The Times They Are a-Changin'", which became anthems for the Civil Rights Movement and anti-war movement. Leaving behind his initial base in the American folk music revival, his six-minute single "Like a Rolling Stone", recorded in 1965, enlarged the range of popular music.
Document 15: Maná: Maná (Spanish: "manna") is a Mexican Rock music band from Guadalajara, Jalisco. The group's current line-up consists of vocalist/guitarist Fher Olvera, drummer Alex González, guitarist Sergio Vallín, and bassist Juan Calleros. Maná has earned four Grammy Awards, eight Latin Grammy Awards, five MTV Video Music Awards Latin America, six Premios Juventud awards, nineteen Billboard Latin Music Awards and fifteen Premios Lo Nuestro awards. It is considered by many as the most influential and successful Latin American band of all time with over 40 million albums sold worldwide.
ground_truth: no