If you heat a mixture of nitrides, it usually decomposes to give nitrogen gas.
(you; heat; a mixture of nitrides) (it; decomposes; to give nitrogen gas; T:usually) Context(it decomposes,List([35, 56))):(it; decomposes to give; nitrogen gas)
it decomposes,List([35, 56))
you it it
heat decomposes decomposes to give
a mixture of nitrides
to give nitrogen gas T:usually
nitrogen gas