A child sleds.
a kid is sledding
A child is a kid. "Sleds" is a verb to tell the truth. "Is sledding" is to emphasize that this child is doing it right now.
exists x1 x2.(a_topic(x1) & n_sled(x1) & of(x1,x2) & n_child(x2))
exists e1 x1.(Actor(e1,x1) & v_sled(e1) & n_kid(x1))