+--------COMP:N-N(of)-------+     
     +MOD_ATT:N-N+--COMP:V_PASS-N(In)--+            |           +-MOD_ATT:N-ADJ-+     
     |    +MOD_AT+         +SUBJ:V_PASS+COMP:V_PASS-+           |       +MOD_ATT+     
     |    |      |         |           |            |           |       |       |     
 In l6 myotube cells , __NODE__ is involved in expression of __SP__ __NODE__ mRNA(s) .
MOD_ATT:N-N (cell,l6)
MOD_ATT:N-N (cell,myotube)
COMP:V_PASS-N(In) (involve,cell)
SUBJ:V_PASS-N (involve,__NODE__)
COMP:V_PASS-N(in) (involve,expression)
COMP:N-N(of) (expression,mRNA(s))
MOD_ATT:N-ADJ (mRNA(s),__SP__)
MOD_ATT:N-ADJ (mRNA(s),__NODE__)