When the flames died down they poured buckets of cold water on the rock, which caused it to crack, split and break into pieces.
(the flames; died down; ) (they; poured; buckets of cold water; on the rock; T:When the flames died down) (the rock; caused; it to crack, split and break into pieces) Context(the rock caused,List([63, 85))):(it; to crack; ) (it; to split; )
the rock caused,List([63, 85))
the flames they the rock it it
died down poured caused to crack to split
buckets of cold water on the rock T:When the flames died down
it to crack, split and break into pieces