+-------COMP:N-N(of)-------+   
     +-------SUBJ:V-N------+          |           +-MOD_ATT:N-ADJ+   
     +COMP:N-N(of)+        +--OBJ:V-N-+           |       +MOD_AT+   
     |            |        |          |           |       |      |   
 Depletion of __NODE__ decreases expression of __SP__ __NODE__ mRNA .
COMP:N-N(of) (depletion,__NODE__)
SUBJ:V-N (decrease,depletion)
OBJ:V-N (decrease,expression)
COMP:N-N(of) (expression,mRNA)
MOD_ATT:N-ADJ (mRNA,__SP__)
MOD_ATT:N-ADJ (mRNA,__NODE__)