With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Connaught Tunnel was equipped with a ventilation system.
text_B: WKDZ-FM -LRB- 106.5 FM -RRB- is a radio station licensed in Cadiz , Kentucky .. FM broadcasting. radio station. radio station. WKDZ-FM is owned by Ham Broadcasting .. FM broadcasting. Beth Mann serves as Ham Broadcasting owner / president .. In 2004 , Ham Broadcasting moved from their former Will Jackson Road location to a new 4100 sqft facility at Broadbent Square in east Cadiz .
not_related.