A child swims with a woman.
a mom takes her child swimming
Just because  child swims with a woman doesn't mean that is the mom.
exists e1 x1 x2.(with(e1,x2) & n_woman(x2) & Actor(e1,x1) & v_swim(e1) & n_child(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_swimming(x2) & of(x2,x3) & n_child(x3) & of(x2,x1) & n_female(x1) & n_mom(x1))