A family prepares to ride on the water.
the family is outside.
to ride on the water you must be outside
exists e1 p1 x1 x2.(n_water(x2) & Topic(e1,p1) & Actor(e1,x1) & v_prepare(e1) & exists e2.(on(e2,x2) & Actor(e2,x1) & v_ride(e2)) & n_family(x1))
exists s1 x1.(n_family(x1) & Theme(s1,x1) & a_outside(s1))