premise: A girl in a child's swimming pool.
hypothesis: A girl playing in the sand.
explanation_1: The girl is described in the swimming pool & playing in the sand.
explanation_2: The girl cannot be playing in the sand while in a swimming pool..
explanation_3: The girl can't be in a swimming pool and sand at the same time.
premise_logic: exists x1 x2 x3 x4.(a_topic(x1) & in(x1,x3) & n_pool(x3) & of(x3,x4) & n_swimming(x4) & of(x3,x2) & n_child(x2) & n_girl(x1))
hypothesis_logic: exists x1 x2 x3.(n_sand(x3) & a_topic(x1) & in(x1,x3) & n_playing(x1) & of(x1,x2) & n_girl(x2))