A skateboarder at night on a ramp.
the skateboarder will fall down
The fact that a skateboarder is on a ramp at night does not mean that he will fall down.
exists x1 x2 x3.(a_topic(x1) & at(x1,x2) & on(x2,x3) & n_ramp(x3) & n_night(x2) & n_skateboarder(x1))
exists e1 s1 x1.(n_skateboarder(x1) & a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_fall(e1))