Unlike flesh-eaters, human saliva contains digestive enzymes that start digesting grains while they're still in the mouth.
(human saliva; contains; digestive enzymes that start digesting grains) (they; 're; T:still; in the mouth) (digestive enzymes; start; digesting grains while they're still in the mouth) Context(digestive enzymes start,List([43, 71))):(digestive enzymes; start digesting; grains; T:while they're still in the mouth)
digestive enzymes start,List([43, 71))
human saliva they digestive enzymes digestive enzymes
contains 're start start digesting
digestive enzymes that start digesting grains
T:still in the mouth
digesting grains while they're still in the mouth
grains T:while they're still in the mouth