An old lady with sunglasses walking through town.
An old lady is locked up in a psychiatric facility.
A lady walking through town cannot simultaneously be a lady locked up in a psychiatric facility.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & with(x1,x2) & through(e1,x4) & n_town(x4) & Actor(e1,x3) & v_walk(e1) & (x2 = x3) & n_sunglass(x2) & n_lady(x1) & a_old(s1) & Theme(s1,x1))
exists e1 s1 s2 s3 x1 x2.(a_up(s3) & Manner(e1,s3) & in(e1,x2) & n_facility(x2) & a_psychiatric(s2) & Theme(s2,x2) & Theme(e1,x1) & v_lock(e1) & n_lady(x1) & a_old(s1) & Theme(s1,x1))