premise: Racers are just beginning a race in an international competition.
hypothesis: Racers are starting a race.
explanation_1: international racing competition, they must start the race
explanation_2: Just beginning is rephrasing of starting.
explanation_3: If they're beginning a race they're starting a race.
premise_logic: exists e1 s1 s2 x1 x2 x3.(a_just(s2) & Manner(e1,s2) & in(e1,x3) & n_competition(x3) & a_international(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_begin(e1) & n_race(x2) & n_racer(x1))
hypothesis_logic: exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_start(e1) & n_race(x2) & n_racer(x1))