premise: There are a group of track runners bracing to take off.
hypothesis: The track runners are all black ethniticity
explanation_1: Some of the truck runners bracing to take off are also in black ethniticity
explanation_2: Not all truck runners are black.
explanation_3: A group of track runners, don't have to be of black ethnicity.
premise_logic: exists p1 x1 e1 p2 x2 x3 x4 x5.((x1 = x2) & Topic(e1,p2) & Actor(e1,x5) & v_brace(e1) & exists e2 s1.(a_off(s1) & Manner(e2,s1) & Actor(e2,x5) & v_take(e2)) & (x2 = x5) & of(x2,x3) & n_runner(x3) & of(x3,x4) & n_track(x4) & n_group(x2))
hypothesis_logic: exists p1 x1 x2.(n_runner(x1) & of(x1,x2) & n_track(x2) & all s1 x3.((n_ethniticity(x3) & a_black(s1) & Theme(s1,x3)) -> (x1 = x3)))
premise_sim: exists x1 e1 p2 x2 x3 x4 x5.(v_brace(e1) & of(x3,x4) & of(x2,x3) & n_track(x4) & n_runner(x3) & n_group(x2) & exists e2 s1.(v_take(e2) & a_off(s1) & Manner(e2,s1) & Actor(e2,x5)) & Topic(e1,p2) & Actor(e1,x5) & (x2 = x5) & (x1 = x2))
hypothesis_sim: exists x1 x2.(of(x1,x2) & n_track(x2) & n_runner(x1) & all s1 x3.(-n_ethniticity(x3) | -a_black(s1) | -Theme(s1,x3) | (x1 = x3)))