A child in a standing in a stream dumps a bucket of water on his or her head.
A child in a standing in a stream does the ice bucket challenge.
you are not necessarily doing the ice bucket challenge if you are dumping a bucket of water on your head.
exists x1 x2 x3 x4 x5 x6 x7.((exists e1.(Theme(e1,x4) & Actor(e1,x1) & v_dump(e1) & on(x4,x6)) | exists e2.(Theme(e2,x4) & Actor(e2,x1) & v_dump(e2) & on(x4,x7))) & n_head(x7) & of(x7,x1) & n_female(x1) & n_head(x6) & of(x6,x1) & n_male(x1) & of(x4,x5) & n_water(x5) & n_bucket(x4) & in(x1,x2) & in(x2,x3) & n_stream(x3) & n_standing(x2) & n_child(x1))
exists e1 x1 x2 x3 x4 x5 x6.(n_challenge(x4) & of(x4,x6) & n_bucket(x6) & of(x4,x5) & n_ice(x5) & Theme(e1,x4) & Actor(e1,x1) & v_do(e1) & in(x1,x2) & in(x2,x3) & n_stream(x3) & n_standing(x2) & n_child(x1))