Question: What alternative rock band, Madrugada or Helium, released two full-length albums in 5 years? 

Context articles: The Cinematics
Epperley
SouthFM
Rhythm Corps
Dexter Danger
Collarbone (band)
Triclops!
Helium (band)
Agent Steel
Madrugada (band)

The Cinematics were an alternative rock band founded in 2003 in Glasgow, Scotland, and disbanded in 2011.
 The band released two full-length albums, "A Strange Education" (2007) and "Love and Terror" (2009), as well as a five-track EP, "Silent Scream EP" (2010), but split up in the middle of recording their third full-length album.
 The band consisted of Scott Rinning, Larry Reid, Adam Goemans and Ross Bonney.
Epperley was an alternative rock band active in the 1990s from Tulsa, Oklahoma.
 The band released two full-length albums, "Epperley" (1996) and "Sophomore Slump" (1998).
 The band consisted of R. David Bynum, Matthew Nadar, David Terry and John Truskett.
SouthFM is an alternative rock band based in Dallas, Texas.
 They formed in 2000 and disbanded in October 2006.
 The band officially released two full-length albums, "Drama Kids" (2003) and "Swallowing the Pill" (2005).
 The band reunited for one concert in June 2010, and played more shows in November 2010.
 As of 2016 they have reformed and are working on a new album.
Rhythm Corps was an alternative rock band from Detroit, Michigan in the 1980s.
 They released two extended play (EP) records and two full-length albums before breaking up.
 They are most well known for their minor hit "Common Ground."
Dexter Danger is a pop punk and alternative rock band formed in 2000 in San Francisco, California.
 The group is known for being leading artists in the San Francisco Bay Area underground pop punk scene and breaking onto the national scene during the early 2000s.
 To date, the band has released two full-length albums, three EPs, and toured the U.S. on eight separate occasions.
 In 2015, the group was recognized by itcher magazine (UK) as one of the top five underrated pop punk bands from the U.S.
Collarbone is a rock band from Helsinki, Finland, founded in 2000.
 Influences from alternative rock and hard rock can be heard in the group's music.
 The band has released two full-length albums.
Triclops!
 was a San Francisco and Oakland-based Acid Punk/progressive rock band formed in 2005.
 They released two full-length albums, a 7" picture disc single, and an EP on noted independent record labels Gold Standard Laboratories, Alternative Tentacles, and Sick Room Records.
 Triclops!
 includes members of noted bay area bands Victim's Family, Fleshies, Bottles and Skulls, and Lower Forty-Eight.
 The band went on hiatus in 2010 following the release of their second full-length "Helpers On The Other Side", with the members remaining busy in their older bands and new projects.
 Triclops!
 guitarist Christian Eric Beaulieu's current project is as the primary songwriter for Los Angeles-based band Anywhere, which also features progressive punk luminaries Mike Watt and Cedric Bixler-Zavala.
Helium was an American alternative rock band fronted by Mary Timony.
 The band formed during the summer of 1992.
 Between 1992 and 1997, they released two full-length albums, three EPs and several singles.
Agent Steel is an American speed metal band from Los Angeles, California that was formed in 1984 by singer John Cyriis (birth name disputed, possibly João Campos or Jean Pierre), and drummer Chuck Profus.
 The band released two full-length albums, and one EP before disbanding in 1988.
 They were most notable for John Cyriis's high-pitched vocals, catchy songs, melodic riffs, and fast tempos mixed in with their unusual (in heavy metal) UFOs, and differential anthropology -as the band's song/lyrical themes.
 The band reformed in 1999 and has released three full-length albums since.
Madrugada was a Norwegian alternative rock band formed in the town of Stokmarknes in 1993.
 The key band members included Sivert Høyem (vocals), Robert Burås (guitar) and Frode Jacobsen (bass).
 After Burås' death on 12 July 2007, Høyem and Jacobsen decided to finish recording what was to be their final album.
 On 21 January 2008, the band released "Madrugada" and announced that they would split after one last tour.
 They performed their final concert on 15 November 2008.