premise: A baby sleeps on the grass with his stuffed monkey.
hypothesis: A baby sleeps soundly with his favorite stuff toy.
explanation_1: The fact that a baby is sleeping does not imply that it is sleeping soundly as it could be in the process of waking up, it could be sleeping fitfully, or in many other states; likewise the presence of a stuffed monkey does not mean that it is the baby's favorite toy, this could be just one of many toys with which the baby plays.
premise_logic: exists e1 s1 x1 x2 x3.(n_monkey(x3) & a_stuffed(s1) & Theme(s1,x3) & of(x3,x2) & n_male(x2) & n_grass(x2) & on(e1,x2) & with(x2,x3) & Actor(e1,x1) & v_sleep(e1) & n_baby(x1))
hypothesis_logic: exists e1 s1 s2 x1 x2 x3.(a_soundly(s2) & Manner(e1,s2) & with(e1,x2) & Time(x2,x3) & n_toy(x3) & n_stuff(x2) & a_favorite(s1) & Theme(s1,x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_sleep(e1) & n_baby(x1))
premise_sim: exists e1 s1 x1 x2 x3.(with(x2,x3) & v_sleep(e1) & on(e1,x2) & of(x3,x2) & n_monkey(x3) & n_male(x2) & n_grass(x2) & n_baby(x1) & a_stuffed(s1) & Theme(s1,x3) & Actor(e1,x1))
hypothesis_sim: exists e1 s1 s2 x1 x2 x3.(with(e1,x2) & v_sleep(e1) & of(x2,x1) & n_toy(x3) & n_stuff(x2) & n_male(x1) & n_baby(x1) & a_soundly(s2) & a_favorite(s1) & Time(x2,x3) & Theme(s1,x2) & Manner(e1,s2) & Actor(e1,x1))