A woman in tight, leather pants walks with a boy.
The boy is her son.
Just because a woman walks with a boy, doesn't necessarily imply the boy is her son.
exists e1 s1 s2 x1 x2 x3 x4.(with(e1,x4) & n_boy(x4) & Actor(e1,x1) & v_walk(e1) & in(x1,x2) & n_pants(x2) & of(x2,x3) & n_leather(x3) & a_,(s2) & Theme(s2,x2) & a_tight(s1) & Theme(s1,x2) & n_woman(x1))
exists p1 x1 x2.(n_son(x2) & of(x2,x1) & n_female(x1) & n_boy(x1) & (x1 = x2))