The water is very calm.
The water appears to be still.
very calm is same as to be still.
exists s1 x1.(n_water(x1) & r_very(s1) & Theme(s1,x1) & a_calm(s1))
exists e1 p1 x1.(n_water(x1) & Topic(e1,p1) & Actor(e1,x1) & v_appear(e1) & exists s1.(Theme(s1,x1) & a_still(s1)))