With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Kobe Bryant led the Lakers to two consecutive championships in the 21st century.
text_B: These are the U.S. number-one country songs of 1999 , per the Billboard Hot Country Songs chart .. 1999 in country music. Billboard. Billboard ( magazine ). Hot Country Songs. Hot Country Songs
not_related.