A purple dinosaur would have a tough time staying alive in a green forest if bigger animals were around.
(A purple dinosaur; would have; a tough time staying alive in a green forest) (a tough time; staying; alive; L:in a green forest) (bigger animals; were; around)
A purple dinosaur a tough time bigger animals
would have staying were
a tough time staying alive in a green forest
alive L:in a green forest
around