With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Nelson Mandela's middle name was unreported.
text_B: The Romanian Dynamic Shooting Association , Romanian Romania tir Dynamic , is the Romanian association for practical shooting under the International Practical Shooting Confederation .. Romanian. Romania. International Practical Shooting Confederation. International Practical Shooting Confederation. practical shooting. practical shooting
not_related.