It is this flexing that causes heat to be generated in Io's interior which in turn melts rocks and causes this melted material to rise to the surface.
(It; is; this flexing that causes heat to be generated in Io's interior) (Io's interior; melts; rocks) (this flexing; causes; heat to be generated in Io's interior) Context(this flexing causes,List([6, 30))):(heat; to be generated; L:in Io's interior) (Io's interior; causes; this melted material to rise to the surface) Context(Io 's interior causes,List([55, 105))):(this melted material; to rise; to the surface)
this flexing causes,List([6, 30)) Io 's interior causes,List([55, 105))
It Io's interior this flexing heat Io's interior this melted material
is melts causes to be generated causes to rise
this flexing that causes heat to be generated in Io's interior
rocks
heat to be generated in Io's interior
L:in Io's interior
this melted material to rise to the surface
to the surface