Two men are sweeping a room that is empty except for one step ladder.
Two men are sweeping a room.
A room that is empty is a type of room.
exists e1 s1 x1 x2 x3 x4 x5.(Theme(e1,x2) & Actor(e1,x1) & v_sweep(e1) & r_except(s1) & for(s1,x4) & Time(x4,x5) & n_ladder(x5) & n_step(x4) & card_eq_1(x4) & Theme(s1,x3) & a_empty(s1) & (x2 = x3) & n_room(x2) & n_man(x1) & card_eq_2(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_sweep(e1) & n_room(x2) & n_man(x1) & card_eq_2(x1))