Weeds interfere with our use of land and water resources, they compete with desired crop and non-crop plants, and they harm our livestock (or even us, upon occasion).
(they; harm; our livestock (or even us; T:upon occasion) (they; compete; with desired crop and non-crop plants) Context(they compete,List([58, 70))):(Weeds; interfere; with our use of land and water resources)
they compete,List([58, 70))
they they Weeds
harm compete interfere
our livestock (or even us T:upon occasion
with desired crop and non-crop plants
with our use of land and water resources