anchor.diff:  "
   ,
   "
  -select 
  -	a
  -	,b
  -	,c
  -from 
  -	abc
  -	, def
  -where
  -	eva	
  -		eva	a
  -				in	(
  +	select 
  +		a
  +		,b
  +		,c
  +	from 
  +		abc
  +		, def
  +	where
  +		eva	
  +			eva	
  +				a
  +				in(
   					a
   					, b
   					, c
  -					)
  -		and	c=d 
  -		and	e=f
  -	or	g between h and i
  +				)
  +			and	
  +				c
  +				=
  +				d 
  +			and	
  +				e
  +				=
  +				f
  +		or	
  +			g 
  +			between 
  +			h 
  +			and 
  +			i
   "
   ]).
   
  
positive.code: 	a
  	,b
  	,c
  	from 
  		abc
  		, def
  	where
  		eva	
  			eva	
  				a
  				in(
  				select
  					b
  				from
  
negative.code: 						h
  						=
  						0
  			)
  		and	
  			upper(
  				c
  			)
  			=
  			'D' 
  		and	
  			e
  			in(
  				1
  				,2
  				,3
  			)
  	or	
  		g
  		=
  		h
  ",
  "
  select 
  	a
  