Two women are playing keyboards under a lit tent at night.
The two women know how to play keyboards.
If the women are playing keyboards, then they know how to play.
exists e1 x1 x2 x3 x4 x5.(at(e1,x5) & n_night(x5) & under(e1,x3) & n_tent(x3) & of(x3,x4) & n_lit(x4) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_keyboard(x2) & n_woman(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_woman(x1) & card_eq_2(x1) & Topic(e1,x2) & Actor(e1,x1) & v_know(e1) & n_manner(x2) & exists e2 x3 x4.(Theme(e2,x4) & Actor(e2,x3) & v_play(e2) & n_keyboard(x4)))