A girl is sitting on the beach and appears to be approaching a hit on the head by a plastic inflated hammer.
A girl is being pranked by her brother.
the girl is not necessarily  being pranked, nor it is not necessarily her brother hitting her.
exists e1 e2 p1 x1 x2 x3 x5.(n_head(x5) & n_beach(x2) & Topic(e2,p1) & Actor(e2,x3) & v_appear(e2) & exists e3 s1 s2 x4 x6.(Theme(e3,x4) & Actor(e3,x3) & v_approach(e3) & by(x4,x6) & n_hammer(x6) & a_inflated(s2) & Theme(s2,x6) & a_plastic(s1) & Theme(s1,x6) & on(x4,x5) & n_hit(x4)) & n_girl(x3) & on(e1,x2) & Actor(e1,x1) & v_sit(e1) & n_girl(x1))
exists e1 x1 x2.(Actor(e1,x2) & n_brother(x2) & of(x2,x1) & n_female(x1) & Theme(e1,x1) & v_prank(e1) & n_girl(x1))