+----------------------------COMP:V-N(In)----------------------------+                           
       |                +----------------------SUBJ:V-N---------------------+                           
       |                +------------------APPOS-----------------+          |                           
       |                |           +--------MOD_ATT:N-ADJ-------+          |                           
       |                |           |            +-MOD_ATT:N-ADJ-+          |                           
       |        +MOD_ATT+           |            |        +MOD_AT+          +-OBJ:V-N-+COMP:N-N(of+     
       |        |       |           |            |        |      |          |         |           |     
 In __SP__ , mutant __NODE__ ( unspecified heterozygous gene mutation ) decreases quantity of __NODE__ .
MOD_ATT:N-ADJ (__NODE__,mutant)
APPOS (__NODE__,mutation)
MOD_ATT:N-ADJ (mutation,unspecified)
MOD_ATT:N-ADJ (mutation,heterozygous)
MOD_ATT:N-N (mutation,gene)
COMP:V-N(In) (decrease,__SP__)
SUBJ:V-N (decrease,__NODE__)
OBJ:V-N (decrease,quantity)
COMP:N-N(of) (quantity,__NODE__)