+------------------------------------------------------COMP:V-N(In)-----------------------------------------------------+                                  
       |     +-----------------------------------------------------SUBJ:V-N----------------------------------------------------+                                  
       |     |                                     +----------------------------------SUBJ:V-N---------------------------------+                                  
       |     |                                     +----------------------------COMP:N-N(by)---------------------------+       |                                  
       |     |                                     |           +---------------OBJ:V-N--------------+                  |       |                                  
       |     +-----OBJ:V-N-----+                   |           |                   +----SUBJ:V-N----+                  |       |                                  
       |     |         +SUBJ:V-+MOD:V-+            +COMP:N-N(in+COMP:N-N(of+       +-SUBJ:V-N-+     |           +MOD_AT+       |                                  
       |     |         |       |      |            |           |           |       |          |     |           |      |       |                                  
 In __SP__ liver , __NODE__ causes little or no change in expression of __SP__ __NODE__ that is decreased by mutant __SP__ __NODE__ gene ( homozygous knockout ) .
OBJ:V-N (cause,liver)
SUBJ:V-N (cause,__NODE__)
MOD:V-ADV (cause,little)
COMP:N-N(in) (change,expression)
COMP:N-N(by) (change,__SP__)
COMP:N-N(of) (expression,__SP__)
SUBJ:V-N (be,__NODE__)
OBJ:V-N (decrease,expression)
SUBJ:V-N (decrease,__NODE__)
MOD_ATT:N-ADJ (__SP__,mutant)
COMP:V-N(In) (__NODE__,__SP__)
SUBJ:V-N (__NODE__,liver)
SUBJ:V-N (__NODE__,change)