premise: A bird is perched on a tree branch.
hypothesis: A bird is perching in a tree.
explanation_1: A tree branch is obviously part of a tree, so a bird perched on one is perching in a tree.
explanation_2: A bird is perched on a tree branch means perching in a tree.
explanation_3: If the bird is perched on a tree branch, they are on a tree. Perching is a rephrasing of perched.
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.(in(e1,x2) & n_tree(x2) & Actor(e1,x1) & v_perch(e1) & n_bird(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.(v_perch(e1) & n_tree(x2) & n_bird(x1) & in(e1,x2) & Actor(e1,x1))