A man balancing a ball on his arm.
There is one man in the picture.
indicates the a man is only one man
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_balance(e1) & on(x3,x4) & n_arm(x4) & of(x4,x1) & n_male(x1) & n_ball(x3) & (x1 = x2) & n_man(x1))
exists p1 x1 x3.(n_picture(x3) & exists x2.((x1 = x2) & in(x2,x3) & n_man(x2) & card_eq_1(x2)))