An older lady uses a Stair Climber in non-work out clothes.
A woman uses the treadmill.
She can't use the stair climber and use a treadmill at the same time.
exists e1 s1 s2 x1 x2 x3 x4.(in(e1,s2) & out(s2,x4) & n_clothes(x4) & Theme(s2,x1) & a_non-work(s2) & Theme(e1,x2) & Actor(e1,x1) & v_use(e1) & ne_org_climber(x2) & (x2 = x3) & ne_org_stair(x3) & n_lady(x1) & r_more(s1) & a_older(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_treadmill(x2) & Theme(e1,x2) & Actor(e1,x1) & v_use(e1) & n_woman(x1))