参阅下图，请问这是什么组织结构的例子？ 

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SQL Error: select id,body,options from ***_enewstiku where sourceid='26932' and id < 2236809 and id<>'2236809' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26932' and id > 2236809 and id<>'2236809' order by id asc limit 5