A worker in an orange vest is using a shovel.
A worker with an organce vest is using a shovel.
A worker is using a shovel while dressed in an orange vest.
exists e1 x1 x2 x3 x4.(Theme(e1,x4) & Actor(e1,x1) & v_use(e1) & n_shovel(x4) & in(x1,x2) & n_vest(x2) & of(x2,x3) & n_orange(x3) & n_worker(x1))
exists e1 x1 x2 x3 x4.(Theme(e1,x4) & Actor(e1,x1) & v_use(e1) & n_shovel(x4) & with(x1,x2) & n_vest(x2) & of(x2,x3) & n_organce(x3) & n_worker(x1))