An middle-age woman smiling while sewing.
A middle-aged woman smiles as she sews.
" Smiling while sewing " is a rephrasing of " smiles as she sews ".
exists e1 e2 s1 x1 x2.(a_topic(x1) & while(e1,e2) & Actor(e2,x2) & v_sew(e2) & Actor(e1,x2) & v_smile(e1) & (x1 = x2) & n_woman(x1) & a_middle-age(s1) & Theme(s1,x1))
exists e1 p1 s1 x1.(exists e2.(Actor(e2,x1) & v_sew(e2)) & n_female(x1) & as(e1,p1) & Actor(e1,x1) & v_smile(e1) & n_woman(x1) & a_middle-aged(s1) & Theme(s1,x1))