+--------------SUBJ:V-N-------------+                               
      +--------COMP:N-N(of)-------+       +-------COMP:V-N(in)-------+    
      |           +-MOD_ATT:N-ADJ-+       |        +---MOD_ATT:N-N---+    
      |           |       +MOD_ATT+       |        |          +MOD_AT+    
      |           |       |       |       |        |          |      |    
 Expression of __SP__ __NODE__ protein occurs in brain from adult __SP__ .
COMP:N-N(of) (expression,protein)
MOD_ATT:N-ADJ (protein,__SP__)
MOD_ATT:N-ADJ (protein,__NODE__)
SUBJ:V-N (occur,expression)
COMP:V-N(in) (occur,__SP__)
MOD_ATT:N-N (__SP__,brain)
MOD_ATT:N-N (__SP__,adult)