premise: A motorist gets some air over a rough hill.
hypothesis: A motorist has stalled.
explanation_1: The motorist is getting air over a hill. This implies that he's moving, as opposed to being stalled.
explanation_2: Stalling and getting some air cannot both occur at the same time.
explanation_3: A motorist who is stalled cannot fly through the air.
premise_logic: exists e1 s1 x1 x2 x3.(over(e1,x3) & n_hill(x3) & a_rough(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_get(e1) & n_air(x2) & n_motorist(x1))
hypothesis_logic: exists e1 x1.(Actor(e1,x1) & v_stall(e1) & n_motorist(x1))
premise_sim: exists e1 s1 x1 x2 x3.(v_get(e1) & over(e1,x3) & n_motorist(x1) & n_hill(x3) & n_air(x2) & a_rough(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1))
hypothesis_sim: exists e1 x1.(v_stall(e1) & n_motorist(x1) & Actor(e1,x1))