premise: Pit crew working on a race car.
hypothesis: the car is a chevy
explanation_1: The race car could be from any brand, we don't know it's a chevy.
premise_logic: exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & on(e1,x4) & n_car(x4) & of(x4,x5) & n_race(x5) & Actor(e1,x3) & v_work(e1) & (x1 = x3) & n_crew(x1) & (x1 = x2) & ne_nam_pit(x2))
hypothesis_logic: exists p1 x1.(n_car(x1) & exists x2.((x1 = x2) & n_chevy(x2)))
premise_sim: exists e1 x1 x2 x3 x4 x5.(v_work(e1) & on(e1,x4) & of(x4,x5) & ne_nam_pit(x2) & n_race(x5) & n_crew(x1) & n_car(x4) & a_topic(x1) & Actor(e1,x3) & (x1 = x3) & (x1 = x2))
hypothesis_sim: exists x1.(n_car(x1) & exists x2.(n_chevy(x2) & (x1 = x2)))