With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: South America is home to the largest continental mountain range in the world.
text_B: The Confederate States Naval Academy was an undergraduate academy in Richmond , Virginia of the Confederate States of America that educated and commissioned officers of the Confederate States Navy .. Richmond. Richmond, Virginia. Virginia. Virginia. Confederate States of America. Confederate States of America. Confederate States Navy. Confederate States Navy. Confederate States. Confederate States of America. The CS Naval Academy was established by an act of the Congress of the Confederate States on April 21 , 1862 and graduated a number of midshipmen before being disbanded on May 2 , 1865 in Abbeville , South Carolina subsequent to the fall of the Confederate States .. Congress of the Confederate States. Congress of the Confederate States. Confederate States. Confederate States of America
not_related.