A large number of railroad workers wearing day-glo orange vests and hard hats are standing on some railroad tracks.
There is a big group.
A large number of railroad workers is a big group.
exists e1 e2 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10.(on(e2,x9) & n_track(x9) & of(x9,x10) & n_railroad(x10) & Actor(e2,x1) & v_stand(e2) & Theme(e1,x5) & Actor(e1,x4) & v_wear(e1) & n_hat(x8) & a_hard(s3) & Theme(s3,x8) & n_vest(x7) & subset_of(x8,x5) & subset_of(x7,x5) & of(x5,x6) & n_orange(x6) & a_day-glo(s2) & Theme(s2,x5) & (x1 = x4) & of(x1,x2) & n_worker(x2) & of(x2,x3) & n_railroad(x3) & n_number(x1) & a_large(s1) & Theme(s1,x1))
exists p1 x1 s1 x2.((x1 = x2) & n_group(x2) & a_big(s1) & Theme(s1,x2))