A toddler on a plastic scooter toy.
The toddler does not know how to walk yet.
A toddler that cannot walk yet likely cannot use a scooter toy.
exists x1 x2 x3 x4.(a_topic(x1) & on(x1,x2) & n_toy(x2) & of(x2,x4) & n_scooter(x4) & of(x2,x3) & n_plastic(x3) & n_toddler(x1))
exists x1.(n_toddler(x1) & -exists e1 x2.(Topic(e1,x2) & Actor(e1,x1) & v_know(e1) & n_manner(x2) & exists e2 s1 x3.(a_yet(s1) & Manner(e2,s1) & Actor(e2,x3) & v_walk(e2))))