premise: A medium sized brown dog jumping
hypothesis: A 40 lb brown dog jumps excitedly for a treat.
explanation_1: A medium sized dog is not assumed to be 40 lbs.  A dog jumping is not assumed to do so excitedly for a treat.
explanation_2: Not all medium sized dogs weigh 40 lb. The fact that a dog is jumping doesn't imply that it jumps excitedly for a treat.
explanation_3: the dog may just be jumping, but not necessarily for a treat.
premise_logic: exists e1 s1 s2 s3 x1 x2.(a_topic(x1) & Actor(e1,x2) & v_jump(e1) & (x1 = x2) & n_dog(x1) & a_brown(s3) & Theme(s3,x1) & a_sized(s2) & Theme(s2,x1) & a_medium(s1) & Theme(s1,x1))
hypothesis_logic: exists s1 x1 x2 x3 x4.(a_topic(x1) & for(x1,x4) & n_treat(x4) & r_excitedly(x1) & n_jump(x1) & of(x1,x3) & n_dog(x3) & a_brown(s1) & Theme(s1,x1) & of(x1,x2) & n_lb(x2) & card_eq_40(x1))