text: SELECT tab0.v1 AS v1 , tab6.v7 AS v7 , tab4.v5 AS v5 , tab5.v6 AS v6 , tab3.v4 AS v4 , tab2.v3 AS v3 , tab7.v8 AS v8 , tab1.v2 AS v2 
   FROM    (SELECT obj AS v1 
  	 FROM wsdbm__follows$$1$$
  	 
  	 WHERE sub = 'wsdbm:User390756'
  	) tab0
   JOIN    (SELECT sub AS v1 , obj AS v2 
  	 FROM wsdbm__likes$$2$$
  	) tab1
   ON(tab0.v1=tab1.v1)
   JOIN    (SELECT obj AS v3 , sub AS v2 
  	 FROM rev__hasReview$$3$$
  	
  	) tab2
   ON(tab1.v2=tab2.v2)
   JOIN    (SELECT obj AS v4 , sub AS v3 
  	 FROM rev__reviewer$$4$$
  	
  	) tab3
   ON(tab2.v3=tab3.v3)
   JOIN    (SELECT obj AS v5 , sub AS v4 
  	 FROM wsdbm__friendOf$$5$$
  	
  	) tab4
   ON(tab3.v4=tab4.v4)
   JOIN    (SELECT sub AS v5 , obj AS v6 
  	 FROM wsdbm__makesPurchase$$6$$
  	
  	) tab5
   ON(tab4.v5=tab5.v5)
   JOIN    (SELECT obj AS v7 , sub AS v6 
  	 FROM wsdbm__purchaseFor$$7$$
  	
  	) tab6
   ON(tab5.v6=tab6.v6)
   JOIN    (SELECT sub AS v7 , obj AS v8 
  	 FROM sorg__author$$8$$
  	) tab7
   ON(tab6.v7=tab7.v7)
  
  
  ++++++Tables Statistic
  sorg__author$$8$$	0	VP	sorg__author/
  	VP	<sorg__author>	40060
  ------
  wsdbm__makesPurchase$$6$$	0	VP	wsdbm__makesPurchase/
  	VP	<wsdbm__makesPurchase>	1499988
  ------
  wsdbm__likes$$2$$	0	VP	wsdbm__likes/
  	VP	<wsdbm__likes>	1124672
  ------
  wsdbm__purchaseFor$$7$$	0	VP	wsdbm__purchaseFor/
  	VP	<wsdbm__purchaseFor>	1500000
  ------
  rev__reviewer$$4$$	0	VP	rev__reviewer/
  	VP	<rev__reviewer>	1500000
  ------
  rev__hasReview$$3$$	0	VP	rev__hasReview/
  	VP	<rev__hasReview>	1476843
  ------
  wsdbm__follows$$1$$	0	VP	wsdbm__follows/
  	VP	<wsdbm__follows>	32736135
  ------
  wsdbm__friendOf$$5$$	0	VP	wsdbm__friendOf/
  	VP	<wsdbm__friendOf>	45092208
  ------
  