+---------COMP:V_PASS-N(in)---------+    
                                                |         +-------MOD_ATT:N-N-------+    
                                                |         |    +-----MOD_ATT:N-N----+    
    +--MOD_ATT:N-N-+--------SUBJ:V_PASS-N-------+         |    |    +--MOD_ATT:N-N--+    
    |      +MOD_ATT+----APPOS---+        +--NEG-+         |    |    |        +MOD_AT+    
    |      |       |            |        |      |         |    |    |        |      |    
 Mutant __SP__ __NODE__ gene ( C?T ) is not involved in body mass index of obese __SP__ .
MOD_ATT:N-N (__NODE__,mutant)
MOD_ATT:N-ADJ (__NODE__,__SP__)
APPOS (__NODE__,C?T)
NEG (not,involve)
SUBJ:V_PASS-N (involve,__NODE__)
COMP:V_PASS-N(in) (involve,__SP__)
MOD_ATT:N-N (__SP__,body)
MOD_ATT:N-N (__SP__,mass)
MOD_ATT:N-N (__SP__,index)
MOD_ATT:N-ADJ (__SP__,obese)