 The Treaty Council of all eight Lakota tribes, which will meet on 28-30 January 2008, will consider whether to "sit down to negotiate" with the federal government.
<fluency>  The Treaty Council of all eight Lakota tribes, which will meet on 28-30 January 2008, will consider whether to "sit down to negotiate" with the federal government.
 The Treaty Council of all eight Lakota tribes, which will meet on 28–30 January 2008, will consider whether to "sit down to negotiate" with the federal government.