A man in a yellow coat and neon green safety vest pushes janitorial equipment down a sidewalk.
A man is picking up litter in a forest.
Unless there is a sidewalk in the forest, the man cannot be picking up trash in these two locations at the same time.
exists e1 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7 x8.(Theme(e1,x7) & Actor(e1,x1) & v_push(e1) & down(x7,x8) & n_sidewalk(x8) & n_equipment(x7) & a_janitorial(s3) & Theme(s3,x7) & in(x1,x2) & n_vest(x4) & of(x4,x6) & n_safety(x6) & a_green(s2) & Theme(s2,x4) & of(x4,x5) & n_neon(x5) & n_coat(x3) & subset_of(x4,x2) & subset_of(x3,x2) & a_yellow(s1) & Theme(s1,x2) & n_man(x1))
exists e1 s1 x1 x2 x3.(in(e1,x3) & n_forest(x3) & a_up(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_pick(e1) & n_litter(x2) & n_man(x1))