premise: A hotdog vendor looks sad.
hypothesis: A hotdog vendor is unhappy.
explanation_1: Often when we're unhappy it shows on our face. Being unhappy can be caused by or result in many negative emotions.
premise_logic: exists e1 p1 x1 x2.(exists s1.(Theme(s1,x1) & a_sad(s1)) & Topic(e1,p1) & Actor(e1,x1) & v_look(e1) & n_vendor(x1) & of(x1,x2) & n_hotdog(x2))
hypothesis_logic: exists s1 x1 x2.(Theme(s1,x1) & a_unhappy(s1) & n_vendor(x1) & of(x1,x2) & n_hotdog(x2))
premise_sim: exists e1 p1 x1 x2.(v_look(e1) & of(x1,x2) & n_vendor(x1) & n_hotdog(x2) & exists s1.(a_sad(s1) & Theme(s1,x1)) & Topic(e1,p1) & Actor(e1,x1))
hypothesis_sim: exists s1 x1 x2.(of(x1,x2) & n_vendor(x1) & n_hotdog(x2) & a_unhappy(s1) & Theme(s1,x1))