A red high speed racing boat skips across the water.
A boat is docked in the harbor.
A boat docked in the harbor cannot be racing across the water at same time.
exists s1 s2 x1 x2 x3 x4 x5.(n_water(x5) & a_topic(x1) & across(x1,x5) & n_skip(x1) & of(x1,x4) & n_boat(x4) & of(x1,x3) & n_racing(x3) & of(x1,x2) & n_speed(x2) & a_high(s2) & Theme(s2,x1) & a_red(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_harbor(x2) & in(e1,x2) & Theme(e1,x1) & v_dock(e1) & n_boat(x1))