The dogs are ready to race and are all wearing their muzzles.
The dogs are set to race, with all of them wearing muzzles
Are set is a rephrasing of are ready.
exists e1 s1 s2 x1 x2 x3.(n_muzzle(x3) & of(x3,x1) & n_thing(x1) & n_dog(x1) & a_all(s2) & Manner(e1,s2) & Theme(e1,x3) & Actor(e1,x1) & v_wear(e1) & to(s1,x2) & n_race(x2) & Theme(s1,x1) & a_ready(s1))
exists e1 x1 x2.(n_thing(x1) & n_dog(x1) & all x3.(n_thing(x3) -> exists e2 x4.(Theme(e2,x4) & Actor(e2,x3) & v_wear(e2) & n_muzzle(x4) & with(e1,x3) & of(x3,x1))) & to(e1,x2) & n_race(x2) & Theme(e1,x1) & v_set(e1))