+MOD_ATT+SUBJ:V-+-OBJ:V-N-+-COMP:N-N(of)+     
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 __NODE__ protein affects development of placenta .
MOD_ATT:N-ADJ (protein,__NODE__)
SUBJ:V-N (affect,protein)
OBJ:V-N (affect,development)
COMP:N-N(of) (development,placenta)