premise: A group of men are sitting and standing a courtyard, some of them are reading books and some are talking.
hypothesis: A group of males are outside reading and singing.
explanation_1: Singing is not implied by saying some are reading and some are talking.
explanation_2: The group of men are doing everything from group two aside from singing.
explanation_3: Singing is not talking.
premise_logic: exists e2 e1 e4 e3 x1 x2 x3 x4 x5 x6 x7.(Actor(e4,x7) & v_talk(e4) & n_thing(x7) & while(e3,e2) & Theme(e3,x6) & Actor(e3,x4) & v_read(e3) & n_book(x6) & rel(x4,x5) & of(x5,x1) & n_thing(x1) & n_thing(x5) & n_courtyard(x4) & Actor(e2,x3) & v_stand(e2) & n_thing(x3) & Actor(e1,x1) & v_sit(e1) & of(x1,x2) & n_man(x2) & n_group(x1))
hypothesis_logic: exists p1 x1 x2.(exists s1 x3 x4 x5.((x1 = x3) & n_singing(x5) & n_reading(x4) & subset_of(x5,x3) & subset_of(x4,x3) & a_outside(s1) & Theme(s1,x3)) & of(x1,x2) & n_male(x2) & n_group(x1))