The water is very clear.
The water is murky and you cannot see the bottom.
The water cannot be both murky and clear.
exists s1 x1.(n_water(x1) & r_very(s1) & Theme(s1,x1) & a_clear(s1))
exists s1 x1 x2.(n_bottom(x2) & n_person(x1) & n_water(x1) & -exists e1 p1.(exists e2.(Theme(e2,x2) & Actor(e2,x1) & v_see(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_can(e1)) & Theme(s1,x1) & a_murky(s1))