A little boy trying to brush a woman's hair.
A boy is trying to help his mother prepare for an event
Not all boys try to help his mother prepare for an event by brushing the woman's hair.
exists e1 p1 s1 x1 x2.(a_topic(x1) & Topic(e1,p1) & Actor(e1,x2) & v_try(e1) & exists e2 x3 x4.(Theme(e2,x4) & Actor(e2,x2) & v_brush(e2) & n_hair(x4) & of(x4,x3) & n_woman(x3)) & (x1 = x2) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists e1 e2 p1 x1 x2 x3 x4.(for(e2,x3) & n_event(x3) & Actor(e2,x1) & v_prepare(e2) & Topic(e1,p1) & Actor(e1,x2) & v_try(e1) & exists e3.(Theme(e3,x4) & Actor(e3,x2) & v_help(e3)) & n_mother(x4) & of(x4,x1) & n_male(x1) & (x1 = x2) & n_boy(x1))