+------------------SUBJ:V-N-----------------+                          
      +--------COMP:N-N(of)-------+               |                          
      |           +-MOD_ATT:N-ADJ-+               +-----COMP:V-N(in)----+    
      |           |       +MOD_ATT+          +-NEG+         +MOD_ATT:N-N+    
      |           |       |       |          |    |         |           |    
 Expression of __SP__ __NODE__ mRNA(s) does not occur in kidney from __SP__ .
COMP:N-N(of) (expression,mRNA(s))
MOD_ATT:N-ADJ (mRNA(s),__SP__)
MOD_ATT:N-ADJ (mRNA(s),__NODE__)
SUBJ:V-N (occur,expression)
NEG (occur,not)
COMP:V-N(in) (occur,__SP__)
MOD_ATT:N-N (__SP__,kidney)