premise: Child getting ready to go down a slide.
hypothesis: The child is on a swing.
explanation_1: A child cannot be on a swing and getting ready to go down a slide at the same time.
explanation_2: You can be either on a slide or a swing.
explanation_3: A swing and a slide are two different structures. Being ready to go down indicates an action is about to take place whereas on a swing means the action is already taking place.
premise_logic: exists e1 p1 x1.(exists p2 s1.(Topic(s1,p2) & Actor(s1,x1) & a_ready(s1) & exists e2 s2 x2.(a_down(s2) & Manner(e2,s2) & Theme(e2,x2) & Actor(e2,x1) & v_go(e2) & n_slide(x2))) & Topic(e1,p1) & Actor(e1,x1) & v_get(e1) & n_child(x1))
hypothesis_logic: exists p1 x1.(n_child(x1) & exists x2.(on(x1,x2) & n_swing(x2)))
premise_sim: exists e1 p1 x1.(v_get(e1) & n_child(x1) & exists p2 s1.(exists e2 s2 x2.(v_go(e2) & n_slide(x2) & a_down(s2) & Theme(e2,x2) & Manner(e2,s2) & Actor(e2,x1)) & a_ready(s1) & Topic(s1,p2) & Actor(s1,x1)) & Topic(e1,p1) & Actor(e1,x1))
hypothesis_sim: exists x1.(n_child(x1) & exists x2.(on(x1,x2) & n_swing(x2)))