+MOD_ATT+--SUBJ:V_PASS-N-+COMP:V_PAS+COMP:N-N(o+    
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 __SP__ __NODE__ gene is involved in obesity of __SP__ .
MOD_ATT:N-ADJ (__NODE__,__SP__)
SUBJ:V_PASS-N (involve,__NODE__)
COMP:V_PASS-N(in) (involve,obesity)
COMP:N-N(of) (obesity,__SP__)