+------SUBJ:V-N------+                                 
      +COMP:N-N(of)+       +COMP:V-N+                        
      |            |       |        |                        
 Expression of __NODE__ occurs in liver from adult organism .
COMP:N-N(of) (expression,__NODE__)
SUBJ:V-N (occur,expression)
COMP:V-N(in) (occur,liver)