A young boy is struggling to pick up a large pumpkin.
An elf is putting a present under the Christmas tree.
It cannot be an elf and a boy at the same time and one cannot be struggling to pick up a pumpkin while the other is putting a present under the Christmas tree.
exists e1 p1 s1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_struggle(e1) & exists e2 s2 s3 x2.(a_up(s3) & Manner(e2,s3) & Theme(e2,x2) & Actor(e2,x1) & v_pick(e2) & n_pumpkin(x2) & a_large(s2) & Theme(s2,x2)) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2 x3 x4.(n_tree(x3) & (x3 = x4) & ne_tim_christmas(x4) & under(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_put(e1) & n_present(x2) & n_elf(x1))