Two martial artists spar while a referee wearing a tie looks on.
The twins spar in Judo as the ref wearing the bow tie looks on intently.
Not all martial artists are twins.Judo is not the only martial art. Not every tie is a bow tie.A referee looks on doesn't imply that he is looking on intently.
exists e1 p1 s1 x1.(exists e3 e2 p2 x2 x3 x4.(exists s2.(Theme(s2,x2) & a_on(s2)) & Topic(e3,p2) & Actor(e3,x2) & v_look(e3) & Theme(e2,x4) & Actor(e2,x3) & v_wear(e2) & n_tie(x4) & (x2 = x3) & n_referee(x2)) & while(e1,p1) & Actor(e1,x1) & v_spar(e1) & n_artist(x1) & a_martial(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 p1 x1 x2 x3 x5 x6.(n_tie(x5) & of(x5,x6) & n_bow(x6) & n_ref(x3) & ne_geo_judo(x2) & n_twin(x1) & exists e3 e2 x4 x7.(on(e3,x7) & n_intently(x7) & Actor(e3,x3) & v_look(e3) & Theme(e2,x5) & Actor(e2,x4) & v_wear(e2) & (x3 = x4)) & as(e1,p1) & in(e1,x2) & Actor(e1,x1) & v_spar(e1))