+----------SUBJ:V-N---------+----COMP:V-N(in)----+           +---------OBJ:V-N--------+     
      +----COMP:N-N(of)---+       |         +MOD_ATT:N-+           |        +-MOD_ATT:N-ADJ-+     
      |           +MOD_ATT+       |         |   +MOD_AT+--SUBJ:V-N-+        |       +MOD_ATT+     
      |           |       |       |         |   |      |           |        |       |       |     
 Expression of __SP__ __NODE__ occurs in __SP__ B lymphocytes expressing __SP__ __NODE__ protein .
COMP:N-N(of) (expression,__NODE__)
MOD_ATT:N-ADJ (__NODE__,__SP__)
SUBJ:V-N (occur,expression)
COMP:V-N(in) (occur,lymphocyte)
MOD_ATT:N-ADJ (lymphocyte,__SP__)
MOD_ATT:N-N (lymphocyte,B)
SUBJ:V-N (express,lymphocyte)
OBJ:V-N (express,protein)
MOD_ATT:N-ADJ (protein,__SP__)
MOD_ATT:N-ADJ (protein,__NODE__)