Question: What is the name of the Brothers who originally Started the band Chevelle and Wrote the Song Vitamin R? 

<P0-S0> Chevelle is an American alternative metal band that formed in 1995 in the Chicago suburb of Wildwood, Illinois. <P0-S1>  The band was originally composed of brothers: Pete Loeffler (lead vocals and guitar), Sam Loeffler (drums and percussion) and Joe Loeffler (bass and backing vocals). <P0-S2>  When Joe left the band in 2005, Geno Lenardo subbed-in as the bassist until he was replaced by Pete and Sam's brother-in-law, Dean Bernardini. <SEP> <P1-S0> Films of Colour are an English alternative rock band, formed in 2008 at the Academy of Contemporary Music in Guildford, Essex, England. <P1-S1>  They originally started gigging under the name of Spires but as there were other bands already established by this name, they later changed their name to Films of Colour. <P1-S2>  After seeing them at their second gig, they were taken under the wing of Phil Catchpole (Relentless Records) where he developed their sound and put them in the studio and finally on tour with Cage the Elephant. <P1-S3>  Paul Carey joined the band as a Co-Manager in 2009, but when Phil Catchpole left in 2010, Paul Carey continued on and took command as their sole manager. <P1-S4>  On 4 October 2010, the band released their first single "Actions" with the B-side "Circles" (both produced/mixed by Duncan "Pixie" Mills (Florence and the Machine). <P1-S5>  The single was released digitally and on limited edition 7" Vinyl by Fierce Panda’s sister label – Label Fandango. <P1-S6>  The band's sound were compared to acts such as Radiohead, Muse, Coldplay, early Bloc Party and Swedish act – Miike Snow. <P1-S7>  Simon Williams, head of Fierce panda described the band "as the best band he's signed since Radiohead and Coldplay". <P1-S8>  Picked up as The Guardian’s New Band of the Day, Best of Myspace Winners, The Independent newspaper’s Barometer: One to Watch and Steve Lamacq’s Favourite New Band. <P1-S9>  There was radio support from 6 Music, Absolute Radio, BBC Radio 2 as well as holding the number 1 spot for two weeks on Amazing Radio <SEP> <P2-S0> Stoker or stylised as ⚡toker is a hard rock band from Cape Town consisting of 2 sets of brothers from two rural country towns in the Western Cape. <P2-S1>  The current line up was established in 2013 when Redge (lead guitar) and Morgan O'Kennedy (drums) joined Chris (vocals, rhythm guitar) and Jurgen Bornman (bass), the latter two having originally started as a 3-piece with drummer Joe Theron. <P2-S2>  While establishing themselves on the local live scene over the next year, the band recorded their debut EP, "Fox in a hole" in 2014. <P2-S3>  After several single releases during 2016 they released their eponymous full length album in early 2017 to local critical acclaim. <SEP> <P3-S0> "Vitamin R (Leading Us Along)" is a single from Chevelle's album "This Type of Thinking (Could Do Us In)". <P3-S1>  It was their second number-one hit on the "Billboard" Hot Mainstream Rock Tracks chart and reached number three on the "Billboard" Hot Modern Rock Tracks chart. <P3-S2>  In interviews, it has been stated that "Vitamin R" is Ritalin. <P3-S3>  The song was written about a friend of the Loeffler brothers, who was misdiagnosed with ADHD, and developed an addiction to Ritalin.