premise: Stretching before roller derby.
hypothesis: Stretching before a marathong.
explanation_1: An individual can only be at one event at a time, either the roller derby or marathong, and not both.
explanation_2: Roller derby is not a marathong.
explanation_3: A roller derby isn't a marathong.
premise_logic: exists e1 x1 x2 x3.(before(e1,x2) & n_derby(x2) & of(x2,x3) & n_roller(x3) & Actor(e1,x1) & v_stretch(e1) & n_thing(x1))
hypothesis_logic: exists e1 x1 x2.(before(e1,x2) & n_marathong(x2) & Actor(e1,x1) & v_stretch(e1) & n_thing(x1))
premise_sim: exists e1 x1 x2 x3.(v_stretch(e1) & of(x2,x3) & n_thing(x1) & n_roller(x3) & n_derby(x2) & before(e1,x2) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2.(v_stretch(e1) & n_thing(x1) & n_marathong(x2) & before(e1,x2) & Actor(e1,x1))