按份共有因为一定的法律事实而形成。这些法律事实不包括（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25244' and id < 2137450 and id<>'2137450' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25244' and id > 2137450 and id<>'2137450' order by id asc limit 5