A boy in a red shirt walking with American flags.
A boy is carrying the flag in the parade.
It says he is walking with flags, not carrying them. He could be just walking beside them. Its not specific.
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & with(e1,x4) & n_flag(x4) & a_american(s2) & Theme(s2,x4) & Actor(e1,x3) & v_walk(e1) & (x2 = x3) & n_shirt(x2) & a_red(s1) & Theme(s1,x2) & n_boy(x1))
exists e1 x1 x2 x3.(n_parade(x3) & n_flag(x2) & Theme(e1,x2) & Actor(e1,x1) & v_carry(e1) & in(x2,x3) & n_boy(x1))