+-------------COMP:V-N(in)------------+    
                                  |         +--------MOD_ATT:N-N--------+    
      +----------SUBJ:V-N---------+         |          +---MOD_ATT:N-N--+    
      +----COMP:N-N(of)---+       |         |          |      +MOD_ATT:N+    
      |           +MOD_ATT+       |         |          |      |   +MOD_A+    
      |           |       |       |         |          |      |   |     |    
 Expression of __SP__ __NODE__ occurs in kidney from male 6 week old __SP__ .
COMP:N-N(of) (expression,__NODE__)
MOD_ATT:N-ADJ (__NODE__,__SP__)
SUBJ:V-N (occur,expression)
COMP:V-N(in) (occur,__SP__)
MOD_ATT:N-N (__SP__,kidney)
MOD_ATT:N-N (__SP__,male)
MOD_ATT:N-N (__SP__,week)
MOD_ATT:N-ADJ (__SP__,old)