+------------SUBJ:V-N------------+----------COMP:V-N(in)----------+    
      +-------COMP:N-N(of)-------+     |          +----MOD_ATT:N-ADJ----+    
      |           +-MOD_ATT:N-ADJ+     |          |       +MOD_ATT:N-ADJ+    
      |           |       +MOD_AT+     |          |       |         +MOD+    
      |           |       |      |     |          |       |         |   |    
 Expression of __SP__ __NODE__ mRNA occurs in __NODE__ treated Rcho 1 cells .
COMP:N-N(of) (expression,mRNA)
MOD_ATT:N-ADJ (mRNA,__SP__)
MOD_ATT:N-ADJ (mRNA,__NODE__)
SUBJ:V-N (occur,expression)
COMP:V-N(in) (occur,cell)
MOD_ATT:N-ADJ (cell,__NODE__)
MOD_ATT:N-ADJ (cell,treat)
MOD_ATT:N-N (cell,1)