+--------------------------------------COMP:V-N(by)-------------------------------------+                                  
                                        |      +--------COMP:N-N(in)-------+                                                    |                                  
       +--MOD_ATT:N-ADJ-+--COMP:V-N(In)-+------OBJ:V-N------+-COMP:N-N(in)-+------SUBJ:V_PASS-N------+           +-MOD_ATT:N-ADJ+                                  
       |        +MOD_ATT+       +SUBJ:V-+OBJ:V-+            |        +MOD_A+COMP:N-N(+               |           |      +MOD_ATT+                                  
       |        |       |       |       |      |            |        |     |         |               |           |      |       |                                  
 In __SP__ , __SP__ __NODE__ protein causes little or no change in body weight of __SP__ that is decreased by mutant __SP__ __NODE__ gene ( homozygous knockout ) .
MOD_ATT:N-ADJ (__NODE__,__SP__)
MOD_ATT:N-ADJ (__NODE__,__SP__)
COMP:V-N(In) (cause,__NODE__)
SUBJ:V-N (cause,protein)
OBJ:V-N (cause,little)
OBJ:V-N (cause,change)
COMP:V-N(by) (cause,__NODE__)
COMP:N-N(in) (little,weight)
COMP:N-N(in) (change,weight)
MOD_ATT:N-N (weight,body)
COMP:N-N(of) (weight,__SP__)
SUBJ:V_PASS-N (decrease,weight)
MOD_ATT:N-ADJ (__NODE__,mutant)
MOD_ATT:N-ADJ (__NODE__,__SP__)