premise: A black race car starts up in front of a crowd of people.
hypothesis: A car is running.
explanation_1: If a car starts up, it is then running
explanation_2: The car is a black race car.
explanation_3: A car that starts up is one in which the engine is running.
premise_logic: exists e1 s1 s2 x1 x2 x3 x4 x5.(in(e1,x3) & of(x3,x4) & of(x4,x5) & n_people(x5) & n_crowd(x4) & n_front(x3) & a_up(s2) & Manner(e1,s2) & Actor(e1,x1) & v_start(e1) & n_car(x1) & of(x1,x2) & n_race(x2) & a_black(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 x1.(Actor(e1,x1) & v_run(e1) & n_car(x1))