With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: A central venous catheter is also referred to as a central venous line.
text_B: XHRRT-FM -LRB- branded as Voz FM -RRB- is a Mexican Spanish-language radio station that serves the Tampico , Tamaulipas market area .. Mexican. Mexico. Spanish-language. Spanish language. radio station. radio station. Tampico. Tampico, Tamaulipas. Tamaulipas. Tamaulipas
not_related.