Question: Who is the musician who co-wrote the song "Teacher I Need You" and also owned Watford Football Club?

<P0-S0> Watford Football Club (also known simply as Watford, or as The Hornets) is an English association football club from the town of Watford, in Hertfordshire. <P0-S1>  The 2010–11 English football season officially began on 1 July 2010, and ended on 30 June 2011, although Watford only played competitive fixtures between August and May. <P0-S2>  The team competed in the Football League Championship for the fourth consecutive season, following relegation from the Premier League in 2006–07. <P0-S3>  The club chairman was Graham Taylor, who as a manager took Watford from the Fourth Division to the top division of English football. <P0-S4>  Their manager was Malky Mackay, and their captain was central midfielder John Eustace. <SEP> <P1-S0> Watford Football Club are an English football club, from Watford, Hertfordshire. <P1-S1>  Founded in 1881 as Watford Rovers, the club has competed in the Football League since 1920, with the exceptions of 1999–2000, 2006–07, 2015–16 and 2016–17, when it competed in the Premier League. <P1-S2>  First introduced by the "Watford Observer" in the 1972–73 season, the Watford F.C. Player of the Season award is voted for annually by supporters of the club. <P1-S3>  It recognises the best overall performance by an individual player through the season. <P1-S4>  Each year the winner is presented with the "Watford Observer Trophy" at the club's end-of-season awards dinner. <SEP> <P2-S0> "Teacher I Need You" is a song written by Elton John and Bernie Taupin that was first released on John's 1973 album "Don't Shoot Me I'm Only the Piano Player". <P2-S1>  The lyrics tell of a schoolboy's crush on his teacher, and the music evokes the sound of 1950s songs. <P2-S2>  Although never released as a single, the song was popular on album-oriented rock radio stations. <P2-S3>  It was included in John's live concert sets on a number of tours, including 1973, 1982 and 1984. <P2-S4>  Artists who have covered the song include Richard Marx and Stephen Cummings. <SEP> <P3-S0> Sir Elton Hercules John, (born Reginald Kenneth Dwight; 25 March 1947), is an English singer, pianist, and composer. <P3-S1>  He has worked with lyricist Bernie Taupin as his songwriting partner since 1967; they have collaborated on more than 30 albums to date. <P3-S2>  In his five-decade career Elton John has sold more than 300million records, making him one of the best-selling music artists in the world. <P3-S3>  He has more than fifty Top 40 hits, including seven consecutive No. 1 US albums, 58 "Billboard" Top 40 singles, 27 Top 10, four No. 2 and nine No. 1. <P3-S4>  For 31 consecutive years (1970–2000) he had at least one song in the "Billboard" Hot 100. <P3-S5>  His tribute single, re-penned in dedication to the late Princess Diana, "Candle in the Wind 1997" sold over 33million copies worldwide and is the best-selling single in the history of the UK and US singles charts. <P3-S6>  He has also composed music, produced records, and has occasionally acted in films. <P3-S7>  John owned Watford Football Club from 1976 to 1987, and 1997 to 2002. <P3-S8>  He is an honorary Life President of the club, and in 2014 had a stand named after him at the club's home stadium.