A child in an orange shirt is running.
A teenager in a black shirt is running.
There is a child, not a teenager. The child is wearing an orange shirt, not black.
exists e1 x1 x2 x3.(Actor(e1,x1) & v_run(e1) & in(x1,x2) & n_shirt(x2) & of(x2,x3) & n_orange(x3) & n_child(x1))
exists e1 s1 x1 x2.(Actor(e1,x1) & v_run(e1) & in(x1,x2) & n_shirt(x2) & a_black(s1) & Theme(s1,x2) & n_teenager(x1))