premise: A group of friends are sitting at a table while drinking alcohol at their local pub.
hypothesis: a group of friends are sleep.
explanation_1: The friends cannot simultaneously be "sleep" and also drinking
explanation_2: Friends do not drink alcohol in their sleep.
explanation_3: Sleeping isn't done sitting at a table, usually.
premise_logic: exists e1 s1 x1 x2 x3 x4 x5 x6.(at(e1,x6) & n_pub(x6) & a_local(s1) & Theme(s1,x6) & of(x6,x1) & n_thing(x1) & while(e1,x4) & n_alcohol(x4) & of(x4,x5) & n_drinking(x5) & at(e1,x3) & n_table(x3) & Actor(e1,x1) & v_sit(e1) & of(x1,x2) & n_friend(x2) & n_group(x1))
hypothesis_logic: exists p1 x1 x2.(exists x3.((x1 = x3) & n_sleep(x3)) & of(x1,x2) & n_friend(x2) & n_group(x1))