Question: Are The Heavy and Eleventh Dream Day both rock bands ?

Context paragraphs:
Eleventh Dream Day: Eleventh Dream Day is an American alternative rock band from Chicago, Illinois, United States.

Love and Radiation: Love and Radiation is the fourth studio album from Christian rock band All Star United.  It was released in 2006 after a four-year hiatus from the studio.  During this break, band leader Ian Eskelin released his second solo album titled "Save the Humans" in 2004.  (Eskelin had previously released a solo album, "Supersonic Dream Day" mononymously as Ian in 1995 before the founding of All Star United.)

J-rock: Japanese rock (Japanese: 日本のロック , Hepburn: Nihon no Rokku ) , sometimes abbreviated to , is rock music from Japan.  Influenced by American and British rock of the 1960s, the first rock bands in Japan performed what is called Group Sounds, with lyrics almost exclusively in English.  Folk rock band Happy End in the early 1970s are credited as the first to sing rock music in the Japanese language.  Punk rock band the Blue Hearts and heavy metal group X Japan, led Japanese rock bands in the late 1980s and early 1990s by achieving major mainstream success.  Japanese rock music has become a cult worldwide, being widely known in Asia and has survived through decades competing with its contemporary derivative local style J-pop.

G.a.s. Drummers: G.a.s. Drummers was a melodic hardcore band formed in Jerez de la Frontera, Spain at the end of 1997 by three teenagers who stood out from their other students due to their colourful hair dies and their taste in the california punk rock bands such as Bad Religion, Operation Ivy, NOFX, Lagwagon, The Descendents etc.  Original members from other small local bands Dani Llamas (guitar and vocals), Pakomoto (Bass and vocals) and Rafa Camison (Drums) started playing together and composing their own music and after one year of sending demos around the country they got put as the opening act for Swedish Punk Rock band Randy on their Spanish tour.  A tour that took the band through the whole country helping a lot of Spanish kids discover that there were actually Spanish bands capable of sounding as good as some of their favorite American bands.  This lead immediately the band to sign to a young record label called Slide Chorus Records a young emerging record label from Madrid which would start releasing albums for other Spanish Punk Rock bands.  This first release titled Proud To Be Nothing hit the streets at the end of 1999 and was presented on their first European tour which covered Spain, Great Britain, France and the Netherlands amongst Spanish punk rock legend[P.P.M.

Beet (album): Beet is the second full-length album by Chicago, Illinois rock band Eleventh Dream Day and their first on a major label, Atlantic Records.

Doug McCombs: Douglas McCombs (born in 1962 in Peoria, Illinois) plays bass and guitar with the instrumental rock band Tortoise and leads the instrumental band Brokeback.  He is also the longtime bassist for the rock band Eleventh Dream Day.  In 1997, he formed Pullman with Bundy K. Brown, Chris Brokaw, and Curtis Harvey, with whom he released two albums.

Prairie School Freakout: Prairie School Freakout is the second (and first full-length) album by Chicago-based band Eleventh Dream Day, originally released on Amoeba Records in 1988.  According to the original liner notes, the album "was recorded on a hot pollution alert day during July [1987] in Louisville, Kentucky, and was made at a place called Artist Recording Service.  We recorded 15 songs between 11:00 pm and 5:00 am, half of the time spent trying to fix the wild buzz coming out of Rick's amp.  We finally gave up and decided to make amp buzz the theme of the record."  The album was re-released and expanded in 2003 by Thrill Jockey.

Haitian rock: Haitian rock, or rock kreyòl, started as rock n roll in Haiti in the early 1960s.  It was played by rock bands called "yeye" bands.  The name "yeye" derives from the Beatles lyrical verse, "yeah, yeah, yeah", which took off in the United States and was listened to by upper class Haitian families who had access to the radio.  Young Haitians formed small electric guitar-based bands.  These "yeye" rock bands were short-lived, as the addition of "compas" to their repertoires resulted in a sound was called mini-jazz, or "mini-djaz" in creole.

The Heavy (band): The Heavy are a British rock band from Bath, Somerset, England, formed in 2007 and signed to Ninja Tune imprint Counter Records and the Bad Son Recording Company.  The band consists of Kelvin Swaby (vocals), Dan Taylor (guitar), Spencer Page (bass guitar) and Chris Ellul (drums).  They have released four albums as well as a wide array of singles.  Their music has been widely used in media, with their 2009 single "How You Like Me Now? " being used the most and becoming the band's signature song.

Susumu Hirasawa: Susumu Hirasawa (平沢 進 ) (born April 1, 1954) is a Japanese musician and composer.  In the fifth year of elementary school, Hirasawa took up the electric guitar, inspired by the surf and instrumental rock bands he heard on the radio and on TV, later joining his junior high school's band.  In 1973 he formed Mandrake, a progressive rock band that incorporated elements from heavy metal and krautrock.  Being one of the few Japanese progressive rock bands of its time, Mandrake achieved little success and released no albums during its lifetime.  After discovering punk rock and working on synthesizer-heavy projects, Hirasawa felt that progressive rock became just for entertainment and decided to reform the band as the electronic rock band P-Model in 1979.  Originally met with success, they turned to decidedly uncommercial post-punk and experimental rock after Hirasawa went through an averse reaction to his fame.  With Hirasawa at the forefront, the band went through various lineups and achieved some popularity in the Japanese independent music scene.

Supporting paragraphs: The Heavy (band) Eleventh Dream Day
Answer: yes