With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: William R. Tolbert Jr. was only the 3rd President of Liberia.
text_B: Thomas Witherby -LRB- 1719 -- 26 November 1797 -RRB- was the founder of Witherby 's , now known as Witherby Seamanship , one of the oldest publishing companies in the United Kingdom .. Witherby Seamanship. Witherby Seamanship. publishing. publishing. United Kingdom. United Kingdom. In 1740 , he opened a stationer 's shop at 9 Birchin Lane , London next door to the Sword Blade coffee house .. London. London. The family business grew into a printing business , a publisher specializing in marine subjects , a bookshop and other businesses .. In 1767 he was elected to the Council of the City of London Corporation representing Langbourn Ward .. London. London. City of London Corporation. City of London Corporation. Langbourn Ward. Langbourn Ward
not_related.