two guys in street cloths doing some marshal arts.
Two men are practicing martial arts.
The men are not necessarily practicing their martial arts.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & Theme(e1,x5) & Actor(e1,x4) & v_do(e1) & n_art(x5) & a_marshal(s1) & Theme(s1,x5) & (x1 = x4) & in(x1,x2) & n_cloth(x2) & of(x2,x3) & n_street(x3) & n_guy(x1) & card_eq_2(x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_practice(e1) & n_art(x2) & a_martial(s1) & Theme(s1,x2) & n_man(x1) & card_eq_2(x1))