Many people of all races are gathered together surrounded by red, white, and black balloons.
A group of all Caucasian people are surrounded by crates and barrels.
Many people of all races are not only Caucasian. Some are surrounded by balloons and the Caucasians and surrounded by crates and barrels.
exists x1.(all x2.(n_race(x2) -> exists e1 e2 s1 s2 s3 s4 s5 s6 x3.(for(e1,e2) & Actor(e2,x3) & n_balloon(x3) & a_black(s6) & Theme(s6,x3) & a_,(s5) & Theme(s5,x3) & a_white(s4) & Theme(s4,x3) & a_,(s3) & Theme(s3,x3) & a_red(s2) & Theme(s2,x3) & Theme(e2,x1) & v_surround(e2) & a_together(s1) & Manner(e1,s1) & Theme(e1,x1) & v_gather(e1) & of(x1,x2))) & n_people(x1) & n_quantity(x1))
exists x1.(all s1 x2.((n_people(x2) & a_caucasian(s1) & Theme(s1,x2)) -> exists e1 x3 x4 x5.(Actor(e1,x3) & subset_of(x5,x3) & n_barrel(x5) & subset_of(x4,x3) & n_crate(x4) & Theme(e1,x1) & v_surround(e1) & of(x1,x2))) & n_group(x1))