premise: Small dog in costume stands on hind legs to reach dangling flowers.
hypothesis: A dog is dressed up for Halloween and is trying to get flowers for his masters costume.
explanation_1: You can not infer the dog is dressed up for Halloween.
explanation_2: Dogs can be dressed up any day not just Halloween. The flowers can be for a purpose other then his master's costume.
explanation_3: Just because dog in costume does not mean it is for Halloween.
premise_logic: exists p1 s1 s2 s3 x1 x2 x3.(a_topic(x1) & Topic(x1,p1) & exists e1 s4 x4.(Theme(e1,x4) & Actor(e1,x1) & v_reach(e1) & n_flower(x4) & a_dangling(s4) & Theme(s4,x4)) & in(x1,x2) & on(x2,x3) & n_leg(x3) & a_hind(s3) & Theme(s3,x3) & n_stand(x2) & a_costume(s2) & Theme(s2,x2) & n_dog(x1) & a_small(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 e2 p1 s1 x1 x2 x3 x5.(ne_geo_halloween(x2) & Topic(e2,p1) & Actor(e2,x3) & v_try(e2) & exists e4 e3 x4 x6.(Theme(e4,x4) & Actor(e4,x3) & v_get(e4) & for(x4,x5) & Actor(e3,x6) & v_costume(e3) & (x5 = x6) & n_flower(x4)) & n_master(x5) & of(x5,x1) & n_male(x1) & n_dog(x3) & a_up(s1) & Manner(e1,s1) & for(e1,x2) & Theme(e1,x1) & v_dress(e1) & n_dog(x1))