With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The theory that the cell is the basic biological unit of all living organisms has been thoroughly disproven.
text_B: Mark Lindquist is an American lawyer and author .. Mark Lindquist is currently the Prosecuting Attorney in Pierce County , Washington .. He was elected in November 2010 , after being appointed to the position in a bipartisan and unanimous vote of the County Council on September 1 , 2009 .
not_related.