A man with a sweater harvests crops.
Bob tends to his corn.
Crops doesn't imply corn.
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_harvest(e1) & n_crop(x3) & with(x1,x2) & n_sweater(x2) & n_man(x1))
exists e1 x1 x2.(n_corn(x2) & of(x2,x1) & n_male(x1) & ne_per_bob(x1) & to(e1,x2) & Actor(e1,x1) & v_tend(e1))