question: When was the professional footballer and rapper born who was transferred in Piet Velthuizen (€0.8M)?
answer: 8 April 1987
context: Title: 2010–11 Hércules CF season
  Passage: The 2010–11 Hércules CF season is the club's 88th in existence and his first season after 13 years without playing in the top flight of Spanish football, La Liga.  In the existing Hércules season returns to Primera trained by Esteban and paying transfers by Nelson Valdez (€4M), Abel Aguilar (€1.5M) or Piet Velthuizen (€0.8M), all cornered by signing star David Trezeguet and transfer of Royston Drenthe.
  Title: Royston Drenthe
  Passage: Royston Ricky Drenthe (born 8 April 1987) is a Dutch retired professional footballer and rapper.  Although he primarily played as a left winger, he could also operated as a left back, speed was his main attribute.
  Title: Mario Gómez
  Passage: Mario Gómez García (] ; born 10 July 1985) is a German professional footballer who plays as a striker for Bundesliga club VfL Wolfsburg and the Germany national team.  Gómez joined Fiorentina after spending four seasons with Bayern Munich, which he joined after six years playing for VfB Stuttgart.  At the time the fee was a record for a player transferred in the Bundesliga, estimated to be €30–35 million.  The fee is currently the third highest, after former Bayern teammates Mario Götze and Javi Martínez, respectively.  When Stuttgart became champions in 2006–07, Gómez contributed 14 goals and 7 assists at age 21 and was selected as German Footballer of the Year.
citations: 2010–11 Hércules CF season Royston Drenthe