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