A group of young boys race on a snowy day.
A group of boys are racing
A group of boys are racing is a rephrasing of a group of young boys race.
exists s1 s2 x1 x2 x3 x4.(a_topic(x1) & on(x1,x4) & n_day(x4) & a_snowy(s2) & Theme(s2,x4) & of(x1,x2) & n_race(x2) & of(x2,x3) & n_boy(x3) & a_young(s1) & Theme(s1,x2) & n_group(x1))
exists e1 x1 x2.(Actor(e1,x1) & v_race(e1) & of(x1,x2) & n_boy(x2) & n_group(x1))