a red covered boat racing across the water
A fast boat is speeding across a lake
Not all boats are fast.Water doesn't imply lake.
exists s1 s2 x1 x2 x3.(n_water(x3) & a_topic(x1) & across(x1,x3) & n_racing(x1) & of(x1,x2) & n_boat(x2) & a_covered(s2) & Theme(s2,x1) & a_red(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(across(e1,x2) & n_lake(x2) & Actor(e1,x1) & v_speed(e1) & n_boat(x1) & a_fast(s1) & Theme(s1,x1))