Some laborers in smocks sort some rubbish while diverting their eyes.
laborers sort rubbish
Laborers in smocks are a kind of laborers.
(x)
exists x1 x2 x3.(a_topic(x1) & Time(x1,x3) & n_rubbish(x3) & n_sort(x1) & of(x1,x2) & n_laborer(x2))