+---COMP:N-N(of)---+    
  +MOD_ATT+-SUBJ:V-N+-OBJ:V-N-+           +MOD_AT+    
  |       |         |         |           |      |    
 Igf protein(s) decreases apoptosis of mammary cells .
MOD_ATT:N-N (protein(s),Igf)
SUBJ:V-N (decrease,protein(s))
OBJ:V-N (decrease,apoptosis)
COMP:N-N(of) (apoptosis,cell)
MOD_ATT:N-ADJ (cell,mammary)