Some children run through a fountain.
Some kids are standing very still.
They cannot run and be standing simultaneously.
exists e1 x1 x2.(through(e1,x2) & n_fountain(x2) & Actor(e1,x1) & v_run(e1) & n_child(x1))
exists e1 s1 x1.(r_very(e1) & a_still(s1) & Manner(e1,s1) & Actor(e1,x1) & v_stand(e1) & n_kid(x1))