A little boy skateboards on a cement ramp.
A boy is skateboarding on a ramp at night.
The little boy might not be skateboarding at night.
exists s1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x3) & n_ramp(x3) & of(x3,x4) & n_cement(x4) & n_skateboard(x1) & of(x1,x2) & n_boy(x2) & a_little(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(at(e1,x3) & n_night(x3) & on(e1,x2) & n_ramp(x2) & Actor(e1,x1) & v_skateboard(e1) & n_boy(x1))