+---------COMP:N-N(of)---------+           
                      |           +----MOD_ATT:N-N---+           
     +SUBJ:+--OBJ:V-N-+           |    +-MOD_ATT:N-N-+           
     |     |          |           |    |             |           
 IGF 1 increases activation of PI 3 kinase [PI3_kinase_protein] .
SUBJ:V-N (increase,1)
OBJ:V-N (increase,activation)
COMP:N-N(of) (activation,[PI3_kinase_protein])
MOD_ATT:N-N ([PI3_kinase_protein],3)
MOD_ATT:N-N ([PI3_kinase_protein],kinase)