Boys dragging a monkey on the African plains.
The boy is on vacation and playing with a monkey.
A boy is not always on vacation.
exists e1 s1 x1 x2 x3 x4.(n_plain(x4) & a_african(s1) & Theme(s1,x4) & a_topic(x1) & on(e1,x4) & Theme(e1,x3) & Actor(e1,x2) & v_drag(e1) & n_monkey(x3) & (x1 = x2) & n_boy(x1))
exists p1 x1.(n_boy(x1) & exists x2 x3 x4 x5.(on(x1,x2) & subset_of(x4,x2) & with(x4,x5) & n_monkey(x5) & n_playing(x4) & subset_of(x3,x2) & n_vacation(x3)))