text: SELECT tab1.v1 AS v1 , tab0.v0 AS v0 , tab2.v3 AS v3 , tab2.v2 AS v2 
   FROM    (SELECT obj AS v3 , sub AS v2 
  	 FROM foaf__homepage$$3$$
  	
  	) tab2
   JOIN    (SELECT sub AS v1 , obj AS v2 
  	 FROM wsdbm__follows$$2$$
  	
  	) tab1
   ON(tab2.v2=tab1.v2)
   JOIN    (SELECT obj AS v1 , sub AS v0 
  	 FROM wsdbm__friendOf$$1$$
  	
  	) tab0
   ON(tab1.v1=tab0.v1)
  
  
  ++++++Tables Statistic
  wsdbm__follows$$2$$	2	OS	wsdbm__follows/foaf__homepage
  	VP	<wsdbm__follows>	32736135
  	SO	<wsdbm__follows><wsdbm__friendOf>	32736135	1.0
  	OS	<wsdbm__follows><foaf__homepage>	1610136	0.05
  ------
  wsdbm__friendOf$$1$$	1	OS	wsdbm__friendOf/wsdbm__follows
  	VP	<wsdbm__friendOf>	45092208
  	OS	<wsdbm__friendOf><wsdbm__follows>	34944355	0.77
  ------
  foaf__homepage$$3$$	1	SO	foaf__homepage/wsdbm__follows
  	VP	<foaf__homepage>	111711
  	SO	<foaf__homepage><wsdbm__follows>	44799	0.4
  ------
  