a man is being photographed by another man while others around him are preparing for a parade
A man photographs a celebrity at the Macy's parade.
A man being photographed is not always a celebrity while the parade could be anywhere and for anything besides the Macy's parade.
exists e1 p1 x1 x2.(exists e2 x3 x4.(for(e2,x4) & n_parade(x4) & Actor(e2,x3) & v_prepare(e2) & around(x3,x1) & -(x3 = x1) & n_person(x3)) & n_male(x1) & n_person(x1) & while(e1,p1) & Actor(e1,x2) & n_man(x2) & -(x2 = x1) & n_man(x1) & n_man(x1) & Theme(e1,x1) & v_photograph(e1))
exists e1 x1 x2 x3 x4.(n_parade(x4) & of(x4,x3) & ne_geo_macy(x3) & at(e1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_photograph(e1) & n_celebrity(x2) & n_man(x1))