text: SELECT tab3.v0 AS v0 , tab2.v3 AS v3 , tab1.v2 AS v2 
   FROM    (SELECT sub AS v0 
  	 FROM sorg__language$$4$$
  	 
  	 WHERE obj = 'wsdbm:Language0'
  	) tab3
   JOIN    (SELECT sub AS v0 
  	 FROM rdf__type$$1$$ 
  	 WHERE obj = 'wsdbm:ProductCategory13'
  	) tab0
   ON(tab3.v0=tab0.v0)
   JOIN    (SELECT sub AS v0 , obj AS v3 
  	 FROM sorg__keywords$$3$$
  	
  	) tab2
   ON(tab0.v0=tab2.v0)
   JOIN    (SELECT sub AS v0 , obj AS v2 
  	 FROM sorg__description$$2$$
  	
  	) tab1
   ON(tab2.v0=tab1.v0)
  
  
  ++++++Tables Statistic
  sorg__description$$2$$	0	VP	sorg__description/
  	VP	<sorg__description>	1502748
  ------
  rdf__type$$1$$	0	VP	rdf__type/
  	VP	<rdf__type>	14800449
  ------
  sorg__keywords$$3$$	0	VP	sorg__keywords/
  	VP	<sorg__keywords>	751190
  ------
  sorg__language$$4$$	0	VP	sorg__language/
  	VP	<sorg__language>	641195
  ------
  