Two young boys in blue jackets and helmets are racing their brown horses down a muddy trail.
Nobody is racing
Nobody means zero people but there are two boys.
exists e1 s1 s2 s3 s4 x1 x2 x3 x4 x5 x6.(down(e1,x6) & n_trail(x6) & a_muddy(s4) & Theme(s4,x6) & Theme(e1,x5) & Actor(e1,x1) & v_race(e1) & n_horse(x5) & a_brown(s3) & Theme(s3,x5) & of(x5,x1) & n_thing(x1) & in(x1,x2) & subset_of(x4,x2) & n_helmet(x4) & subset_of(x3,x2) & n_jacket(x3) & a_blue(s2) & Theme(s2,x3) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
-exists e1 x1.(Actor(e1,x1) & v_race(e1) & n_person(x1))