premise: Some elderly people are playing instruments in a park.
hypothesis: A group of old people are outdoors playing music.
explanation_1: Some elderly people are the same as a group of old people. Playing instruments is the same as playing music. Being in a park implies being outdoors.
explanation_2: Old people is the same as elderly people and if they are in a park they are outdoors.
explanation_3: Several people are playing instruments in park
premise_logic: exists e1 s1 x1 x2 x3.(in(e1,x3) & n_park(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_instrument(x2) & n_people(x1) & a_elderly(s1) & Theme(s1,x1))
hypothesis_logic: exists p1 s1 x1 x2.(exists e1 x3 x4 x5.((x1 = x3) & Theme(e1,x5) & Actor(e1,x4) & v_play(e1) & n_music(x5) & (x3 = x4) & n_outdoors(x3)) & of(x1,x2) & n_people(x2) & a_old(s1) & Theme(s1,x2) & n_group(x1))
premise_sim: exists e1 s1 x1 x2 x3.(v_play(e1) & n_people(x1) & n_park(x3) & n_instrument(x2) & in(e1,x3) & a_elderly(s1) & Theme(s1,x1) & Theme(e1,x2) & Actor(e1,x1))
hypothesis_sim: exists s1 x1 x2.(of(x1,x2) & n_people(x2) & n_group(x1) & exists e1 x3 x4 x5.(v_play(e1) & n_outdoors(x3) & n_music(x5) & Theme(e1,x5) & Actor(e1,x4) & (x3 = x4) & (x1 = x3)) & a_old(s1) & Theme(s1,x2))