+------OBJ:V-N-----+----------COMP:N-N(of)---------+   
    +SUBJ:V-+       +MOD_ATT:N-+             +MOD_ATT:N-+MOD_AT+   
    |       |       |          |             |          |      |   
 Phorbol esters increases stimulation of __NODE__ 1 messenger RNA .
SUBJ:V-N (ester,Phorbol)
OBJ:V-N (ester,stimulation)
MOD_ATT:N-N (stimulation,increase)
COMP:N-N(of) (stimulation,RNA)
MOD_ATT:N-ADJ (messenger,__NODE__)
MOD_ATT:N-N (RNA,messenger)