text: SELECT tab0.v1 AS v1 , tab0.v0 AS v0 , tab2.v3 AS v3 , tab1.v2 AS v2 
   FROM    (SELECT obj AS v1 , sub AS v0 
  	 FROM mo__artist$$1$$
  	) tab0
   JOIN    (SELECT sub AS v1 , obj AS v2 
  	 FROM wsdbm__friendOf$$2$$
  	
  	) tab1
   ON(tab0.v1=tab1.v1)
   JOIN    (SELECT obj AS v3 , sub AS v2 
  	 FROM wsdbm__follows$$3$$
  	
  	) tab2
   ON(tab1.v2=tab2.v2)
  
  
  ++++++Tables Statistic
  wsdbm__friendOf$$2$$	1	SO	wsdbm__friendOf/mo__artist
  	VP	<wsdbm__friendOf>	448135
  	SO	<wsdbm__friendOf><mo__artist>	3329	0.01
  	OS	<wsdbm__friendOf><wsdbm__follows>	346685	0.77
  ------
  wsdbm__follows$$3$$	0	VP	wsdbm__follows/
  	VP	<wsdbm__follows>	330403
  	SO	<wsdbm__follows><wsdbm__friendOf>	330403	1.0
  ------
  mo__artist$$1$$	1	OS	mo__artist/wsdbm__friendOf
  	VP	<mo__artist>	115
  	OS	<mo__artist><wsdbm__friendOf>	35	0.3
  ------
  