If they are panting, it may be because they need the oxygen because they've been exercising, or it may mean they are trying to get rid of built-up heat in their bodies."
(they; are panting; ) (it; may be; because they need the oxygen because they've been exercising) (they; to get; rid of built-up heat in their bodies) (they; need; the oxygen; because they've been exercising) (they; 've been exercising; ) (it; may mean; they are trying to get rid of built-up heat in their bodies) Context(it may mean,List([96, 107))):(they; are trying; to get rid of built-up heat in their bodies) Context(it may mean they are trying,List([96, 123))):(they; are trying rid; of built-up heat; L:in their bodies)
it may mean,List([96, 107)) it may mean they are trying,List([96, 123))
they it they they they it they they
are panting may be to get need 've been exercising may mean are trying are trying rid
because they need the oxygen because they've been exercising
rid of built-up heat in their bodies
the oxygen because they've been exercising
they are trying to get rid of built-up heat in their bodies
to get rid of built-up heat in their bodies
of built-up heat L:in their bodies