4_a_cat_mouse
This is a wall .

%3 0004_0002__is is 0004_0001__This this 0004_0002__is->0004_0001__This [arg0] 0004_0003__a_0004_0004__wall a_wall 0004_0002__is->0004_0003__a_0004_0004__wall [prd2]
arc(r_0004_0002__is,r_0004_0001__This,arg0).
arc(r_0004_0002__is,r_0004_0003__a_r_0004_0004__wall,prd2).


IP-MAT NP-SBJ D;_nphd_ This BEP;~Ln is NP-PRD2 D a N wall PUNC .
( (IP-MAT (NP-SBJ;{WALL} (D;_nphd_ This;{this}))
          (BEP;~Ln is;{be})
          (NP-PRD2 (D a;{a})
                   (N wall;{wall}))
          (PUNC .))
  (ID 4_a_cat_mouse))