Three men are walking around in an open, stone building that has sand as the floor.
Three men are swimming.
The men can't be walking and swimming simultaneously.
exists e1 e2 p1 s1 s2 x1 x2 x3 x4 x5 x6.(n_floor(x6) & in(e1,x2) & Theme(e2,x5) & Actor(e2,x4) & v_have(e2) & as(x5,x6) & n_sand(x5) & (x2 = x4) & n_building(x2) & of(x2,x3) & n_stone(x3) & a_,(s2) & Theme(s2,x2) & a_open(s1) & Theme(s1,x2) & exists s3.(Theme(s3,x1) & a_around(s3)) & Topic(e1,p1) & Actor(e1,x1) & v_walk(e1) & n_man(x1) & card_eq_3(x1))
exists e1 x1.(Actor(e1,x1) & v_swim(e1) & n_man(x1) & card_eq_3(x1))