A woman is showing a little boy in a green shirt how to sew.
A woman shows a little boy how to sew for the first time.
A woman showing a boy how to sew is not necessarily showing him how to sew for the first time.
exists e1 p1 s1 s2 x1 x2 x3.(in(e1,x3) & Topic(x3,p1) & exists e2.(Actor(e2,x3) & v_sew(e2)) & n_shirt(x3) & a_green(s2) & Theme(s2,x3) & Theme(e1,x2) & Actor(e1,x1) & v_show(e1) & n_boy(x2) & a_little(s1) & Theme(s1,x2) & n_woman(x1))
exists e1 p1 s1 s2 x1 x2 x3.(n_time(x3) & a_first(s2) & Theme(s2,x3) & Theme(e1,x2) & Actor(e1,x1) & v_show(e1) & Topic(x2,p1) & exists e2.(for(e2,x3) & Actor(e2,x2) & v_sew(e2)) & n_boy(x2) & a_little(s1) & Theme(s1,x2) & n_woman(x1))