With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Austria has a Declaration of Neutrality.
text_B: Barack Obama , 44th President of the United States -LRB- 2009 -- 2017 -RRB- ; United States Senator from Illinois -LRB- 2005 -- 2008 -RRB- .. Barack Obama. Barack Obama. President of the United States. President of the United States. United States Senator. United States Senate. Illinois. Illinois
not_related.