A child running near graffiti.
The child is spray painting a wall.
Graffiti and spray painting are not the same tense.
exists e1 x1 x2 x3.(a_topic(x1) & near(e1,x3) & n_graffitus(x3) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_child(x1))
exists p1 x1.(n_child(x1) & all x2.(n_wall(x2) -> exists s1 x3.((x1 = x3) & for(x3,x2) & n_painting(x3) & a_spray(s1) & Theme(s1,x3))))