With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Nick Jonas released his third studio album in 2016.
text_B: The Conversion of Sum Loo is a short story by Willa Cather .. Willa Cather. Willa Cather. It was first published in Library in August 1900 .. Library. Library ( journal )
not_related.