A young man is playing in the fountain.
A youngster is studying for a test.
One does not study for a test while playing.
exists e1 s1 x1 x2.(n_fountain(x2) & in(e1,x2) & Actor(e1,x1) & v_play(e1) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2.(for(e1,x2) & n_test(x2) & Actor(e1,x1) & v_study(e1) & n_youngster(x1))