premise: A smiling girl slides down a purple slide feet first.
hypothesis: A girl goes down a slide.
explanation_1: You 'slides down' when you go down a slide.
explanation_2: If a girl goes down a slide, that implies she slides down.
explanation_3: One must go down to slide down.
premise_logic: exists e2 e1 s1 s2 s3 x1 x2 x3.(a_first(s3) & Manner(e2,s3) & a_down(s2) & Manner(e2,s2) & Theme(e2,x2) & Actor(e2,x1) & v_slide(e2) & n_foot(x2) & of(x2,x3) & n_slide(x3) & a_purple(s1) & Theme(s1,x2) & n_girl(x1) & Actor(e1,x1) & v_smile(e1))
hypothesis_logic: exists e1 s1 x1 x2.(a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_go(e1) & n_slide(x2) & n_girl(x1))