a surfer surfs across the large wave.
He likes to go scuba diving in the aquarium.
Scuba diving and surfs are not the same activity.
exists e1 s1 x1 x2.(n_wave(x2) & a_large(s1) & Theme(s1,x2) & across(e1,x2) & Actor(e1,x1) & v_surf(e1) & n_surfer(x1))
exists e1 p1 x1 x4.(n_aquarium(x4) & n_male(x1) & Topic(e1,p1) & Actor(e1,x1) & v_like(e1) & exists e2 x2 x3.(in(e2,x4) & Theme(e2,x2) & Actor(e2,x1) & v_go(e2) & n_diving(x2) & of(x2,x3) & n_scuba(x3)))