+----------------SUBJ:V-N---------------+---------------COMP:V-N(in)--------------+    
      +-----------COMP:N-N(of)----------+     |         +----------MOD_ATT:N-N----------+    
      |           +----MOD_ATT:N-ADJ----+     |         |               +--MOD_ATT:N-N--+    
      |           |      +--MOD_ATT:N-N-+     |         |               |   +MOD_ATT:N-A+    
      |           |      |      +MOD_ATT+     |         |               |   |    +MOD_AT+    
      |           |      |      |       |     |         |               |   |    |      |    
 Expression of __SP__ OR 1 [__NODE__] mRNA occurs in retina from 210.0 day old fetal __SP__ .
COMP:N-N(of) (expression,mRNA)
MOD_ATT:N-ADJ (mRNA,__SP__)
MOD_ATT:N-N (mRNA,1)
MOD_ATT:N-N (mRNA,[__NODE__])
SUBJ:V-N (occur,expression)
COMP:V-N(in) (occur,__SP__)
MOD_ATT:N-N (__SP__,retina)
MOD_ATT:N-N (__SP__,day)
MOD_ATT:N-ADJ (__SP__,old)
MOD_ATT:N-ADJ (__SP__,fetal)