premise: Young sheep in the grass.
hypothesis: Nothing in the grass.
explanation_1: If there are young sheep in the grass, there can not also be nothing.
premise_logic: exists s1 x1 x2.(n_grass(x2) & a_topic(x1) & in(x1,x2) & n_sheep(x1) & a_young(s1) & Theme(s1,x1))
hypothesis_logic: exists x2.(n_grass(x2) & -exists x1.(a_topic(x1) & in(x1,x2) & n_thing(x1)))
premise_sim: exists s1 x1 x2.(n_sheep(x1) & n_grass(x2) & in(x1,x2) & a_young(s1) & a_topic(x1) & Theme(s1,x1))
hypothesis_sim: exists x2.(n_grass(x2) & all x1.(-n_thing(x1) | -in(x1,x2) | -a_topic(x1)))