+----------------SUBJ:V-N---------------+                     
 +-------OBJ:V-N------+                  +----OBJ:V-N----+     
 |     +MOD_ATT:+-MOD_PRED:N-N+MOD_P+    |       +MOD_ATT+     
 |     |        |     |       |     |    |       |       |     
 9 __NODE__ __NODE__ is an agonist of __SP__ __NODE__ protein .
MOD_ATT:N-ADJ (__NODE__,__NODE__)
MOD_PRED:N-N (__NODE__,agonist)
OBJ:V-N (be,9)
MOD_POST:N-ADJ (agonist,of)
SUBJ:V-N (__SP__,9)
OBJ:V-N (__SP__,protein)
MOD_ATT:N-ADJ (protein,__NODE__)