premise: A skateboarder at night on a ramp.
hypothesis: The skateboared is on the ramp
explanation_1: The skateboarder is on the ramp is skateboarding at night.
premise_logic: exists x1 x2 x3.(a_topic(x1) & at(x1,x2) & on(x2,x3) & n_ramp(x3) & n_night(x2) & n_skateboarder(x1))
hypothesis_logic: exists p1 x1 x2.(n_ramp(x2) & n_skateboared(x1) & on(x1,x2))
premise_sim: exists x1 x2 x3.(on(x2,x3) & n_skateboarder(x1) & n_ramp(x3) & n_night(x2) & at(x1,x2) & a_topic(x1))
hypothesis_sim: exists x1 x2.(on(x1,x2) & n_skateboared(x1) & n_ramp(x2))