premise: Four people in emergency suits and helmets spray water from behind a cement wall.
hypothesis: Fire fighters are battling a fire safely behind a cement wall.
explanation_1: People in emergency suits don't have to be fire fighters and because they are spraying water doesn't mean they are putting out a fire.
explanation_2: Just because people in emergency suits and helmets spray water it does not mean they are firefighters.  Just because people spray water from behind a cement wall it does not mean they are battling a fire.
explanation_3: People in emergency suits do not have to be firefighters. Spraying water from behind a wall does not imply battling a fire.
premise_logic: exists e1 x1 x2 x3 x4 x5 x6 x7 x8.(behind(e1,x7) & n_wall(x7) & of(x7,x8) & n_cement(x8) & r_from(e1) & Theme(e1,x6) & Actor(e1,x1) & v_spray(e1) & n_water(x6) & in(x1,x2) & subset_of(x5,x2) & n_helmet(x5) & subset_of(x3,x2) & n_suit(x3) & of(x3,x4) & n_emergency(x4) & n_people(x1) & card_eq_4(x1))
hypothesis_logic: exists e1 x1 x2 x3 x4 x5.(r_safely(e1) & behind(e1,x4) & n_wall(x4) & of(x4,x5) & n_cement(x5) & Theme(e1,x3) & Actor(e1,x1) & v_battle(e1) & n_fire(x3) & n_fighter(x1) & (x1 = x2) & ne_nam_fire(x2))
premise_sim: exists e1 x1 x2 x3 x4 x5 x6 x7 x8.(v_spray(e1) & subset_of(x5,x2) & subset_of(x3,x2) & r_from(e1) & of(x7,x8) & of(x3,x4) & n_water(x6) & n_wall(x7) & n_suit(x3) & n_people(x1) & n_helmet(x5) & n_emergency(x4) & n_cement(x8) & in(x1,x2) & card_eq_4(x1) & behind(e1,x7) & Theme(e1,x6) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2 x3 x4 x5.(v_battle(e1) & r_safely(e1) & of(x4,x5) & ne_nam_fire(x2) & n_wall(x4) & n_fire(x3) & n_fighter(x1) & n_cement(x5) & behind(e1,x4) & Theme(e1,x3) & Actor(e1,x1) & (x1 = x2))