premise: A young boy and an adult man looking at ducks in a pond.
hypothesis: The boy and his dad walk along the edge of the pond.
explanation_1: The adult man might not be the dad of the boy. Just because they walk along the edge of a pond doesn't mean they are looking at ducks.
explanation_2: Just because a boy is with an adult man it does not mean the man is his dad.  Just because the boy and man are looking at ducks in a pond it does not mean they walk along the edge of the pond.
explanation_3: The boy and man are not necessarily a boy and his dad.
premise_logic: exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(a_topic(s1) & subset_of(x2,s1) & at(e1,x5) & in(x5,x6) & n_pond(x6) & n_duck(x5) & Actor(e1,x4) & v_look(e1) & (x2 = x4) & n_man(x2) & of(x2,x3) & n_adult(x3) & subset_of(x1,s1) & n_boy(x1) & a_young(s2) & Theme(s2,x1))
hypothesis_logic: exists s1 s2 x1 x2 x3 x4.(n_pond(x4) & n_edge(x3) & n_walk(x2) & a_dad(s2) & Theme(s2,x2) & of(x2,x1) & n_male(x1) & n_boy(x1) & a_topic(s1) & subset_of(x2,s1) & along(x2,x3) & of(x3,x4) & subset_of(x1,s1))
premise_sim: exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(v_look(e1) & subset_of(x2,s1) & subset_of(x1,s1) & of(x2,x3) & n_pond(x6) & n_man(x2) & n_duck(x5) & n_boy(x1) & n_adult(x3) & in(x5,x6) & at(e1,x5) & a_young(s2) & a_topic(s1) & Theme(s2,x1) & Actor(e1,x4) & (x2 = x4))
hypothesis_sim: exists s1 s2 x1 x2 x3 x4.(subset_of(x2,s1) & subset_of(x1,s1) & of(x3,x4) & of(x2,x1) & n_walk(x2) & n_pond(x4) & n_male(x1) & n_edge(x3) & n_boy(x1) & along(x2,x3) & a_topic(s1) & a_dad(s2) & Theme(s2,x2))