Young boys with backpacks walking down a street.
two boys walk down the street
Doesn't mean there are two boys.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & with(x1,x2) & down(e1,x4) & n_street(x4) & Actor(e1,x3) & v_walk(e1) & (x2 = x3) & n_backpack(x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_street(x2) & down(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_boy(x1) & card_eq_2(x1))