Some or most of the elastic potential energy becomes kinetic energy in the ball, and the rising ball then converts this kinetic energy into gravitational potential energy.
(Some or most of the elastic potential energy; becomes; kinetic energy) (the rising ball; converts; this kinetic energy; into gravitational potential energy; T:then)
Some or most of the elastic potential energy the rising ball
becomes converts
kinetic energy
this kinetic energy into gravitational potential energy T:then