+--------------SUBJ:V-N-------------+-----------COMP:V-N(in)----------+    
      +--------COMP:N-N(of)-------+       |         +-----MOD_ATT:N-ADJ-----+    
      |           +-MOD_ATT:N-ADJ-+       |         |        +-MOD_ATT:N-ADJ+    
      |           |       +MOD_ATT+       |         |        |        +MOD_A+    
      |           |       |       |       |         |        |        |     |    
 Expression of __SP__ __NODE__ protein occurs in benign melanocytic nevi nuclei .
COMP:N-N(of) (expression,protein)
MOD_ATT:N-ADJ (protein,__SP__)
MOD_ATT:N-ADJ (protein,__NODE__)
SUBJ:V-N (occur,expression)
COMP:V-N(in) (occur,nucleus)
MOD_ATT:N-ADJ (nucleus,benign)
MOD_ATT:N-ADJ (nucleus,melanocytic)
MOD_ATT:N-N (nucleus,nevus)