A woman works by a sewing machine.
The woman is near the sewing machine.
The words by and near are synonymous. Works is a more descriptive adjective of what the woman is doing.
exists e1 e2 x1 x2.(by(e1,x2) & n_machine(x2) & Actor(e2,x2) & v_sew(e2) & Actor(e1,x1) & v_work(e1) & n_woman(x1))
exists p1 x1 x2 x3.(n_machine(x2) & of(x2,x3) & n_sewing(x3) & n_woman(x1) & near(x1,x2))