Question: Are Vib Gyor and Muzzle both alternative rock groups?

Context paragraphs:
Thalia Zedek: Thalia Zedek (born 1961) is an American singer and guitarist.  Active since the early 1980s, she has been a member of several notable alternative rock groups, including Live Skull and Uzi both of which, according to "Spin" magazine, "made big noise in the underground", and Come.  Critic Heather Phares writes that Zedek's music can be defined by "the permanent, aching rasp in her voice, her guitar's bluesy bite, the startlingly clear-eyed lyrics about life and loss."

Perry Farrell: Perry Farrell (born Peretz Bernstein; March 29, 1959) is an American singer-songwriter and musician, best known as the frontman for the alternative rock band Jane's Addiction.  Farrell created the touring festival Lollapalooza as a farewell tour for Jane's Addiction in 1991; it has since evolved into an annual destination festival.  Farrell continues to produce Lollapalooza with partners William Morris Agency and C3.  Farrell has also led the alternative rock groups Porno for Pyros and Satellite Party.  He is the only person who has performed at all twelve Coachella Valley Music and Arts Festivals to date, having appeared under five different names (Perry Farrell, Jane's Addiction, DJ Peretz, Satellite Party, and with Hybrid).

Tommy Stinson: Thomas Eugene "Tommy" Stinson (born October 6, 1966) is an American rock musician.  He came to prominence in the 1980s as the bass guitarist for The Replacements, one of the definitive American alternative rock groups.  After their breakup in 1991, Stinson formed Bash & Pop, acting as lead vocalist, guitarist and frontman.  In the mid-1990s he was the singer and bassist for the rock band Perfect, and eventually joined the hard rock band Guns N' Roses in 1998.

Vib Gyor: Vib Gyor was a band that was formed in Leeds, England.  The name was derived from the first letters of all the colours in the rainbow, in order from the shortest to longest wavelengths.

Grave Dancers Union: Grave Dancers Union is the sixth studio album by the American alternative rock band Soul Asylum, released in 1992.  The album spent 76 weeks on the "Billboard" music charts and was certified triple-platinum in 1993, establishing Soul Asylum as one of the most successful rock groups of the first half of the 1990s.

Hammerjack's: Hammerjacks Concert Hall and Nightclub was a large concert hall in downtown Baltimore through the 1980s and into the 1990s owned by Louis J. Principio III The club attracted many big-name national acts, but also showcased many rising stars in the music world.  The bands ranged from punk, glam, and heavy metal acts most commonly associated with the venue (e.g., Guns n Roses, Kix, Ratt, Skid Row or Extreme) to pop (e.g., Badfinger) and alternative rock groups (e.g., Goo Goo Dolls).  The club was often frequented by hard core patrons and musicians donning big hair, leather, lace, spandex, and heavy makeup, and was considered a "hard rock shrine."  Hamerjacks, however, attracted audiences with other attire as well.  It was torn down on June 12, 1997 to make way for M&T Bank Stadium parking lot.  Hammerjacks was billed as "The largest nightclub on the east coast."

Muzzle (song): "Muzzle" is a song by American alternative rock band The Smashing Pumpkins from their third album, "Mellon Collie and the Infinite Sadness".  It was one of the last songs written by Billy Corgan for "Mellon Collie", with the song's lyrics referring to what Corgan thought the public's perception was of him at the time.  It was rumored to be the Smashing Pumpkins fifth and final single from this album, as is evidenced by the fact that a promotional single for the song was issued to radio stations worldwide.  However, the song "Thirty-Three" was released as the fifth and final single instead.

Omar Rodríguez-López: Omar Alfredo Rodríguez-López (born September 1, 1975) is an American multi-instrumentalist, songwriter, producer, writer, actor and film director.  He is known for being the guitarist and band-leader of The Mars Volta from 2001 until their breakup in 2012, and is currently the guitarist for the alternative rock groups At the Drive-In, Antemasque and Bosnian Rainbows.  He was also the bassist for the dub band De Facto.  He has embarked on a solo career, both in studio and in concert, frequently described as experimental, avant-garde and/or progressive.  He has collaborated with numerous artists spanning from John Frusciante to El-P.

Muzzle (band): Muzzle is an alternative rock band formed in 1994 by Ryan Maxwell, Wesley Nelson, Burke Thomas, and Greg Collinsworth.  They have released two albums with Reprise Records: "Betty Pickup" in 1996 and "Actual Size" in 1999.

China Drum: China Drum are an English punk rock band from Ovingham in Northumberland active initially from 1989 to 2000, playing under the name The Drum beginning in 1999.  The group released three moderately successful full-length albums and toured in support of noted punk and alternative rock groups, including Green Day, Ash, and Supergrass.  They reformed in 2013 under the China Drum moniker.

Supporting paragraphs: Vib Gyor Muzzle (band)
Answer: yes