+---------SUBJ:V-N--------+                                                             
      +----COMP:N-N(of)---+     +----COMP:V-N(in)----+        +--------OBJ:V-N--------+       
      |            +MOD_AT+     |        +MOD_ATT:N-N+SUBJ:V-N+          +MOD_ATT:N-AD+       
      |            |      |     |        |           |        |          |            |       
 Expression of __NODE__ mRNA occurs in brain from __SP__ exhibiting spontaneous hypertension .
COMP:N-N(of) (expression,mRNA)
MOD_ATT:N-ADJ (mRNA,__NODE__)
SUBJ:V-N (occur,expression)
COMP:V-N(in) (occur,__SP__)
MOD_ATT:N-N (__SP__,brain)
SUBJ:V-N (exhibit,__SP__)
OBJ:V-N (exhibit,hypertension)
MOD_ATT:N-ADJ (hypertension,spontaneous)