+-------SUBJ:V-N------+          +----COMP:N-N(of)----+     
      +COMP:N-N(of)+        +--OBJ:V-N-+            +MOD_ATT+     
      |            |        |          |            |       |     
 Activation of __NODE__ decreases expression of __NODE__ protein .
COMP:N-N(of) (activation,__NODE__)
SUBJ:V-N (decrease,activation)
OBJ:V-N (decrease,expression)
COMP:N-N(of) (expression,protein)
MOD_ATT:N-ADJ (protein,__NODE__)