With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: NASA has followed most US space exploration efforts.
text_B: Taatsi is a village in Leisi Parish , Saare County in western Estonia .. County. Counties of Estonia. Saare County. Saare County. Leisi Parish. Leisi Parish. Estonia. Estonia. Category  : Villages in Saare County. County. Counties of Estonia. Saare County. Saare County
not_related.