Two men in black and white uniforms are demonstrating karate.
Two men giving a demonstration
Just because the men are demonstrating karate, does not mean the men are giving a demonstration.
exists e1 s1 s2 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_demonstrate(e1) & n_karate(x3) & in(x1,x2) & n_uniform(x2) & a_white(s2) & Theme(s2,x2) & a_black(s1) & Theme(s1,x2) & n_man(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_give(e1) & n_demonstration(x3) & (x1 = x2) & n_man(x1) & card_eq_2(x1))