3 men in a band playing electric guitar.
Three gus playing harmonicas.
Three men cannot be playing electric guitar and harmonicas at the same time.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & n_guitar(x4) & a_electric(s1) & Theme(s1,x4) & (x2 = x3) & n_band(x2) & n_man(x1) & n_date(x1) & a_date_day_03(x1) & a_date_day_03(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_harmonica(x3) & (x1 = x2) & n_gus(x1) & card_eq_3(x1))