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tag Tag
message1 Comment
message2 Comment
comment Comment
person1 Person
person2 Person
person3 Person
post1 Post
post2 Post
forum1 Forum
forum2 Forum

a message1 tag hasTag
b message2 tag hasTag
c comment tag hasTag
d message1 person1 hasCreator
e message1 post1 replyOf
f forum1 post1 containerOf
g forum1 person2 hasMember
h forum1 person3 hasMember
i comment person2 hasCreator
j comment message2 replyOf
k message2 person3 hasCreator
l message2 post2 replyOf
m forum2 post2 containerOf

tag name ='Leonardo_DiCaprio'
message2 creationDate <1289070384400
forum1 id =206158431133
forum2 id !=206158431133