People racing on ATV's in full protective garb
The national ATV championship race has just started.
Just because people are racing on ATV's doesn't mean that they are in a national ATV championship race.
exists e1 s1 s2 x1 x2 x3 x4 x5.(a_topic(x1) & in(e1,x5) & n_garb(x5) & a_protective(s2) & Theme(s2,x5) & a_full(s1) & Theme(s1,x5) & on(e1,x3) & n_'s(x3) & (x3 = x4) & ne_org_atv(x4) & Actor(e1,x2) & v_race(e1) & (x1 = x2) & n_people(x1))
exists e1 s1 s2 x1 x2 x3.(n_race(x1) & of(x1,x3) & n_championship(x3) & (x1 = x2) & ne_nam_atv(x2) & a_national(s1) & Theme(s1,x1) & a_just(s2) & Manner(e1,s2) & Actor(e1,x1) & v_start(e1))