+--------------SUBJ:V-N-------------+                                  
      +--------COMP:N-N(of)-------+       +--------COMP:V-N(in)-------+      
      |           +-MOD_ATT:N-ADJ-+       |          +--MOD_ATT:N-ADJ-+      
      |           |       +MOD_ATT+       |          |       +MOD_ATT:+      
      |           |       |       |       |          |       |        |      
 Expression of __SP__ __NODE__ protein occurs in atypical __SP__ meningioma .
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,meningioma)
MOD_ATT:N-ADJ (meningioma,atypical)
MOD_ATT:N-ADJ (meningioma,__SP__)