A girl jumps rope on a sidewalk.
The girl is sitting very still.
The girl that jumps cannot be the one that is siting.
exists e1 x1 x2 x3.(on(e1,x3) & n_sidewalk(x3) & Theme(e1,x2) & Actor(e1,x1) & v_jump(e1) & n_rope(x2) & n_girl(x1))
exists e1 s1 x1.(n_girl(x1) & r_very(e1) & a_still(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1))