A man in a blue shirt gets his picture taken as he is about to take a picture.
men take pictures of each other
Each of men takes picture of another man, so they take pictures of each other.
exists e2 e1 p1 s1 x1 x2 x3 x4.(Theme(e2,x3) & Actor(e2,x1) & v_get(e2) & exists p2 s2.(Topic(s2,p2) & Actor(s2,x1) & a_about(s2) & exists e3 x5.(Theme(e3,x5) & Actor(e3,x1) & v_take(e3) & n_picture(x5))) & n_male(x1) & n_male(x1) & as(e1,p1) & Theme(e1,x4) & v_take(e1) & (x3 = x4) & n_picture(x3) & of(x3,x1) & in(x1,x2) & n_shirt(x2) & a_blue(s1) & Theme(s1,x2) & n_man(x1))
exists x1 x2.(all x3.(n_other(x3) -> exists e1.(Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & of(x2,x3))) & n_picture(x2) & n_man(x1))