A man is cleaning the walkway at an airport.
A woman is slipping on a puddle of water that a man was using to clean a walkway.
A man would not be using a puddle of water to clean a walkway.
exists e1 x1 x2 x3.(n_walkway(x2) & Theme(e1,x2) & Actor(e1,x1) & v_clean(e1) & at(x2,x3) & n_airport(x3) & n_man(x1))
exists e1 e2 p1 x1 x2 x3 x4 x5 x6.(on(e1,x2) & Topic(e2,p1) & exists e3 x7.(Theme(e3,x7) & Actor(e3,x4) & v_clean(e3) & n_walkway(x7)) & Theme(e2,x6) & Actor(e2,x5) & v_use(e2) & (x2 = x6) & n_man(x5) & n_man(x4) & of(x2,x3) & n_water(x3) & n_puddle(x2) & Actor(e1,x1) & v_slip(e1) & n_woman(x1))