People are riding in a crowded truck bed.
THe people are walking down the street.
People are either riding or walking.
exists e1 s1 x1 x2 x3.(in(e1,x2) & n_bed(x2) & of(x2,x3) & n_truck(x3) & a_crowded(s1) & Theme(s1,x2) & Actor(e1,x1) & v_ride(e1) & n_people(x1))
exists e1 s1 x1 x2.(n_street(x2) & down(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1) & a_the(s1) & Theme(s1,x1))