premise: A bird is perched on a tree branch.
hypothesis: An owl is perched on a tree branch.
explanation_1: The bird isn't necessarily an owl.
explanation_2: Not all birds are an owl.
explanation_3: A bird is not necessarily an owl.
premise_logic: exists e1 x1 x2 x3.(on(e1,x2) & n_branch(x2) & of(x2,x3) & n_tree(x3) & Theme(e1,x1) & v_perch(e1) & n_bird(x1))
hypothesis_logic: exists e1 x1 x2 x3.(on(e1,x2) & n_branch(x2) & of(x2,x3) & n_tree(x3) & Theme(e1,x1) & v_perch(e1) & n_owl(x1))
premise_sim: exists e1 x1 x2 x3.(v_perch(e1) & on(e1,x2) & of(x2,x3) & n_tree(x3) & n_branch(x2) & n_bird(x1) & Theme(e1,x1))
hypothesis_sim: exists e1 x1 x2 x3.(v_perch(e1) & on(e1,x2) & of(x2,x3) & n_tree(x3) & n_owl(x1) & n_branch(x2) & Theme(e1,x1))