question: Was Toru Yamashita always the lead guitarist?
answer: not to feature original lead guitarist Alex Onizawa
context: Title: One Ok Rock discography
  Passage: Japanese rock band One Ok Rock has released eight studio albums, two EPs, 22 singles, seven video albums, six cover versions, and 32 music videos.  One Ok Rock was formed in Tokyo, Japan in 2005, currently consists of Takahiro Moriuchi (vocals), Toru Yamashita (guitar/leader), Ryota Kohama (bass), and Tomoya Kanki (drums).
  Title: You Can Do Anything
  Passage: You Can Do Anything is the third and final album by the English rock band The Zutons.  It was produced by Sunset Sound Studios in Los Angeles with producer George Drakoulias (The Black Crowes/Primal Scream/Tom Petty) and was released on Monday 2 June 2008 in the United Kingdom.  "You Can Do Anything" was released after the departure of original lead guitarist Boyan Chowdhury, and is the first album to feature the band's new lead guitarist Paul Molloy.  The album was preceded by the first single "Always Right Behind You", which was released on 26 May 2008.  It entered the Official UK Albums Chart at No.6.
  Title: Niche Syndrome
  Passage: Niche Syndrome is the fourth studio album by Japanese rock band One Ok Rock, released on June 9, 2010.  It is released as a normal CD-only edition and a limited CD+DVD edition.  This album includes the group's single "Kanzen Kankaku Dreamer," which was released earlier in 2010.  This is the first album not to feature original lead guitarist Alex Onizawa.
  Title: Iron Cross (Burmese Band)
  Passage: Iron Cross (Burmese: အိုင်းရင်းခရော့စ် ; abbreviated as IC) is a rock band in Myanmar formed by lead guitarist Saw Bwe Hmu.  The current line up consists of Chit San Maung (lead guitarist), Khin Maung Thant (bass guitarist), Banyar Naing (keyboards player), and Kha Yan (drummer).  Iron Cross played too many studio albums of Myanmar's singers.  However, Lay Phyu, Myo Gyi, Ah Nge and Wine Wine are long time relationships with IC who also as part with them.  All the four singers are lead vocal of IC's live performance and IC always performs with them.
  Title: Toru Yamashita
  Passage: Toru Yamashita (山下 亨 , Yamashita Tōru ) (born December 7, 1988 in Osaka), better known by his stage name Toru, is a guitarist and leader in the Japanese rock band ONE OK ROCK.  He was in the hip-hop group HEADS along with Ryota Kohama from ONE OK ROCK before they disbanded in 2002.
  Title: Masayoshi Yamashita
  Passage: Masayoshi Yamashita (山下 昌良 , Yamashita Masayoshi ) (born November 29, 1961 in Osaka, Japan) is the original and current bass guitarist of the Japanese heavy metal band, Loudness.
  Title: One Ok Rock
  Passage: One Ok Rock, stylized as ONE OK ROCK (pronounced in Japanese as "one o'clock"), is a Japanese rock band formed in Tokyo, Japan in 2005.  The band currently consists of Takahiro Moriuchi (vocals), Toru Yamashita (guitar/leader), Ryota Kohama (bass), and Tomoya Kanki (drums).
citations: Niche Syndrome One Ok Rock