Men pass food out from a truck bed.
Men passing food out.
pass and passing are the same word in a different tense
exists e1 x1 x2 x3 x4.(from(e1,x3) & n_bed(x3) & of(x3,x4) & n_truck(x4) & r_out(e1) & Theme(e1,x2) & Actor(e1,x1) & v_pass(e1) & n_food(x2) & n_man(x1))
exists e1 s1 x1 x2 x3.(a_topic(x1) & a_out(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_pass(e1) & n_food(x3) & (x1 = x2) & n_man(x1))