With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Billy Wider was born in Romania.
text_B: The Queen Elizabeth II domestic rate stamp is a definitive stamp issued by Canada Post , and bearing the image of Elizabeth II , Queen of Canada .. definitive stamp. definitive stamp. Canada Post. Canada Post. Elizabeth II. Elizabeth II. Queen of Canada. Monarchy of Canada. Seven versions of the stamp have been issued since 2003 .
not_related.