With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Thirteen was created in the 21st century.
text_B: Pierre Marie Jeanne Alexandre Therese Guiraud better known as Alexandre Guiraud -LRB- 24 December 1788 -- 24 February 1847 -RRB- was a French poet , dramatic author and novelist .. French. France
not_related.