+------MOD_ATT:N-ADJ------+                                                                 
        |       +---MOD_ATT:N-N---+                                  +-------COMP:N-N(of)-------+   
        |       |      +MOD_ATT:N-+--COMP:V_PASS-N(In)--+            |           +-MOD_ATT:N-ADJ+   
        |       |      |     +MOD_+         +SUBJ:V_PASS+COMP:V_PASS-+           |       +MOD_AT+   
        |       |      |     |    |         |           |            |           |       |      |   
 In cultured breast cancer cell lines , __NODE__ is involved in expression of __SP__ __NODE__ mRNA .
MOD_ATT:N-ADJ (line,cultured)
MOD_ATT:N-N (line,breast)
MOD_ATT:N-N (line,cancer)
MOD_ATT:N-N (line,cell)
COMP:V_PASS-N(In) (involve,line)
SUBJ:V_PASS-N (involve,__NODE__)
COMP:V_PASS-N(in) (involve,expression)
COMP:N-N(of) (expression,mRNA)
MOD_ATT:N-ADJ (mRNA,__SP__)
MOD_ATT:N-ADJ (mRNA,__NODE__)