+------SUBJ:V-N------+         +----COMP:N-N(of)---+     
      +COMP:N-N(of)+       +-OBJ:V-N-+           +MOD_ATT+     
      |            |       |         |           |       |     
 Stimulation of nerves decreases activity of __NODE__ protein .
COMP:N-N(of) (stimulation,nerve)
SUBJ:V-N (decrease,stimulation)
OBJ:V-N (decrease,activity)
COMP:N-N(of) (activity,protein)
MOD_ATT:N-ADJ (protein,__NODE__)