With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The stratosphere is above the clouds.
text_B: WZAP is a Religious and Southern Gospel formatted broadcast radio station licensed to Bristol , Virginia , serving the Tri-Cities area .. Tri-Cities. Tri-Cities, Tennessee. Religious. Religious broadcasting. Southern Gospel. Southern Gospel. broadcast. Broadcasting. radio station. radio station. WZAP is owned and operated by RAM Communications , Inc. .
not_related.