There are many people talking and laughing wearing very colorful clothing.
A group of clowns are laughing.
many people doesn't mean a group, and very colorful clothing doesn't mean clowns.
exists p1 x1 e2 e1 p2 x2 x3 x4.((x1 = x2) & exists e3 s1 x5.(Theme(e3,x5) & Actor(e3,x4) & v_wear(e3) & n_clothing(x5) & a_colorful(s1) & Theme(s1,x5) & r_very(x5)) & Topic(e2,p2) & Actor(e2,x4) & v_laugh(e2) & (x2 = x4) & Actor(e1,x3) & v_talk(e1) & (x2 = x3) & n_people(x2) & n_quantity(x2))
exists e1 x1 x2.(Actor(e1,x1) & v_laugh(e1) & of(x1,x2) & n_clown(x2) & n_group(x1))