Instruct: Given a premise, retrieve a hypothesis that is entailed by the premise.
Query: Jon Ryan Schaffer (born March 15, 1968) is an American heavy metal musician. He is best known as the guitarist and last remaining original member of the Florida-based heavy metal band Iced Earth, which he formed in 1985 under the name "Purgatory". He also sings in his side project Sons of Liberty and played guitar for Demons and Wizards, his collaboration with Blind Guardian frontman Hansi Kürsch.
:Sons of Liberty and Demons and Wizards are music bands.
Clifford Jarvis was a musician
Scrivner has played with Fall Out Boy.
Neal Schon played the guitar in Santana.
Gilby Clarke was formerly the guitar player for a band with the initials GNR
Ken Fryer´s main business is working with metal appliances
He also sings in his side project Fathers of Liberty.
Drummer Eric Dillon also played the guitar.
Ryan also knows how to play the guitar.
Neal Joseph Schon joined Journey after their first album
Perry Farrell also released a solo album.
Neal Joseph Schon is the greatest rock guitarist of all time
Ryan earned a part as a trumpet player.
Ronald Sanchez can be heard on the radio
Scott Shiflett was a musician who may have been in a band.
Neil Joseph Schon was the first member of Journey to leave the band.
Josef Janíček was also a former guitarist of The Primitives Group.
Perry Farrell is concerned about the electic music festival.
Silver Surfer was a founding member of the Fantastic Four.
21 Savage has written songs with other artists.
Jeffrey Steven Pilson was the bassist for Foreigner 
Sherinian played on an album before Inertia
Jon Ryan Schaffer sings in his side project called Demons and Wizards.
Jon Ryan Schaffer's current band is called "Purgatory".
Schaffer was born on a sunny spring day.