premise: a group of four people conversing next to a bus
hypothesis: A woman mounts a motorcycle and starts the engine.
explanation_1: two people means more than one woman and also the woman is on a motorcycle while the two women are standing next to a bus.
explanation_2: bus not same as motorcycle
explanation_3: A woman is only one female, not a group of four people.
premise_logic: exists e1 x1 x2 x3 x4.(a_topic(x1) & of(x1,x2) & to(e1,x4) & n_bus(x4) & r_next(e1) & Actor(e1,x3) & v_converse(e1) & (x2 = x3) & n_people(x2) & card_eq_4(x2) & n_group(x1))
hypothesis_logic: exists e1 e2 x1 x2 x3 x4.(n_engine(x4) & Theme(e2,x4) & Actor(e2,x3) & v_start(e2) & n_woman(x3) & Theme(e1,x2) & Actor(e1,x1) & v_mount(e1) & n_motorcycle(x2) & n_woman(x1))