premise: The flight attendant dressed in yellow demonstrates life vest usage.
hypothesis: A flight attendant is standing in front of passengers.
explanation_1: The flight attendant could be in front of a classroom or training course, not necessarily passengers.
explanation_2: The flight attendant  demonstrating life vest usage doesn't imply that the flight attendant is standing in front of passengers.
explanation_3: The flight attendant could be demonstrating life vest usage sitting down and not standing.
premise_logic: exists e2 e1 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 x4.(in(e1,x3) & of(x3,x4) & n_passenger(x4) & n_front(x3) & Actor(e1,x1) & v_stand(e1) & n_attendant(x1) & of(x1,x2) & n_flight(x2))
premise_sim: exists e2 e1 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 x4.(v_stand(e1) & of(x3,x4) & of(x1,x2) & n_passenger(x4) & n_front(x3) & n_flight(x2) & n_attendant(x1) & in(e1,x3) & Actor(e1,x1))