A kid sitting on an upside boat by the waterfront.
A kid sits on his dads old boat
A kid sitting on a boat does not imply the kid sits on his dad's boat or that it is old.
exists e1 s1 x1 x2 x3 x4.(n_waterfront(x4) & a_topic(x1) & on(e1,x3) & by(x3,x4) & n_boat(x3) & a_upside(s1) & Theme(s1,x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_kid(x1))
exists e1 s1 x1 x2 x3 x4.(on(e1,x2) & Time(s1,x4) & n_boat(x4) & Theme(s1,x3) & a_old(s1) & (x2 = x3) & n_dad(x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_sit(e1) & n_kid(x1))