premise: The flight attendant dressed in yellow demonstrates life vest usage.
hypothesis: A woman is preparing drinks on an airplane.
explanation_1: Demonstrating life vest usage is different from preparing drinks
explanation_2: A flight attendant does not have to be a woman.  If a flight attendant demonstrates life vest usage they are not preparing drinks.
explanation_3: A flight attendant who demonstrates a life vest cannot be preparing drinks at the same time.
premise_logic: exists e1 e2 x1 x2 x3 x4 x5 x6 x7.(n_attendant(x1) & of(x1,x2) & n_flight(x2) & Theme(e2,x5) & Actor(e2,x1) & v_demonstrate(e2) & n_usage(x5) & of(x5,x7) & n_vest(x7) & of(x5,x6) & n_life(x6) & in(e1,x4) & n_yellow(x4) & Theme(e1,x3) & v_dress(e1) & (x1 = x3))
hypothesis_logic: exists e1 x1 x2 x3.(on(e1,x3) & n_airplane(x3) & Theme(e1,x2) & Actor(e1,x1) & v_prepare(e1) & n_drink(x2) & n_woman(x1))
premise_sim: exists e1 e2 x1 x2 x3 x4 x5 x6 x7.(v_dress(e1) & v_demonstrate(e2) & of(x5,x7) & of(x5,x6) & of(x1,x2) & n_yellow(x4) & n_vest(x7) & n_usage(x5) & n_life(x6) & n_flight(x2) & n_attendant(x1) & in(e1,x4) & Theme(e2,x5) & Theme(e1,x3) & Actor(e2,x1) & (x1 = x3))
hypothesis_sim: exists e1 x1 x2 x3.(v_prepare(e1) & on(e1,x3) & n_woman(x1) & n_drink(x2) & n_airplane(x3) & Theme(e1,x2) & Actor(e1,x1))