+------------SUBJ:V-N------------+                            
      +-------COMP:N-N(of)-------+     +------COMP:V-N(in)-----+    
      |           +-MOD_ATT:N-ADJ+     |         +MOD_ATT:N-ADJ+    
      |           |       +MOD_AT+     |         |      +MOD_AT+    
      |           |       |      |     |         |      |      |    
 Expression of __SP__ __NODE__ mRNA occurs in __SP__ soleus muscle .
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,muscle)
MOD_ATT:N-ADJ (muscle,__SP__)
MOD_ATT:N-N (muscle,soleus)