A band plays on stage with two people facing each other and singing, one person playing the drums, one on keyboard and one person on guitar.
Another musician plays the piano very well.
keyboard guitar and drums are different instruments then a piano
exists e2 e1 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12.(n_drum(x7) & with(e1,x3) & rel(x3,x5) & rel(x5,x8) & subset_of(x11,x8) & on(x11,x12) & n_guitar(x12) & n_person(x11) & card_eq_1(x11) & subset_of(x9,x8) & on(x9,x10) & n_keyboard(x10) & n_thing(x9) & card_eq_1(x9) & Theme(e2,x7) & Actor(e2,x6) & v_play(e2) & (x5 = x6) & n_person(x5) & card_eq_1(x5) & all x14 x13 x15.((n_singing(x15) & n_other(x14) & subset_of(x15,x13) & subset_of(x14,x13)) -> exists e3.(Theme(e3,x13) & Actor(e3,x4) & v_face(e3))) & (x3 = x4) & n_people(x3) & card_eq_2(x3) & on(e1,x2) & n_stage(x2) & Actor(e1,x1) & v_play(e1) & n_band(x1))
exists e1 s1 x1 x2 x3.(n_piano(x3) & n_musician(x1) & r_very(e1) & a_well(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_musician(x2) & -(x2 = x1))