With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Led Zeppelin put out the album Led Zeppelin II in Paris.
text_B: Navidad is the Spanish Christmas album by Christian pop singer Jaci Velasquez and is essentially a Spanish version of her previous album Christmas .. Jaci Velasquez. Jaci Velasquez. Christian. Christian music. Christmas. Christmas ( Jaci Velasquez album ). Christian pop. contemporary Christian music
not_related.