The gravitational potential energy mgh is first converted into kinetic energy, and then, on hitting the ground, this energy is transformed into other forms such as heat and sound.
(The gravitational potential energy mgh; is converted; into kinetic energy; T:first) (this energy; is transformed; into other forms such as heat and sound; T:then; T:on hitting the ground)
The gravitational potential energy mgh this energy
is converted is transformed
into kinetic energy T:first
into other forms such as heat and sound T:then T:on hitting the ground