+---------------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+        |        |     |      +MOD_A+    
      |           |       |         |        |        |     |      |     |    
 Expression of __SP__ __NODE__ protein(s) occurs in Snell dwarf __SP__ liver .
COMP:N-N(of) (expression,protein(s))
MOD_ATT:N-ADJ (protein(s),__SP__)
MOD_ATT:N-ADJ (protein(s),__NODE__)
SUBJ:V-N (occur,expression)
COMP:V-N(in) (occur,liver)
MOD_ATT:N-N (liver,Snell)
MOD_ATT:N-N (liver,dwarf)
MOD_ATT:N-ADJ (liver,__SP__)