A woman is sitting down, playing an instrument, and signing outdoors.
A woman performs stand-up comedy.
One cannot sit down and stand up at the same time.  One cannot perform comedy while playing and singing simultaneously.
exists e1 e2 s1 x1 x2 x3 x4 x5.(for(e1,e2) & Theme(e2,x2) & Actor(e2,x1) & v_play(e2) & subset_of(x4,x2) & n_outdoors(x4) & of(x4,x5) & n_signing(x5) & subset_of(x3,x2) & n_instrument(x3) & a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1) & n_woman(x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_comedy(x2) & a_stand-up(s1) & Theme(s1,x2) & n_woman(x1))