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