A young child on a rock climbing wall.
The child is a professional rock wall climber
A child couldn't be a professional at anything.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_climb(e1) & n_wall(x4) & (x2 = x3) & n_rock(x2) & n_child(x1) & a_young(s1) & Theme(s1,x1))
exists p1 x1.(n_child(x1) & exists s1 x2 x3 x4.((x1 = x2) & n_climber(x2) & of(x2,x4) & n_wall(x4) & of(x2,x3) & n_rock(x3) & a_professional(s1) & Theme(s1,x2)))