People racing on ATV's in full protective garb
They are racing the ATV's in the mud, on a rainy day.
Just because people are racing on ATV's doesn't mean that they are racing in the mud, on a rainy day.
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 x1 x2 x3 x4.(n_mud(x4) & n_'s(x2) & (x2 = x3) & ne_org_atv(x3) & on(e1,x1) & n_day(x1) & a_rainy(s1) & Theme(s1,x1) & in(e1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_race(e1) & n_thing(x1))