With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Neil deGrasse Tyson's writing career began in 2000.
text_B: Mount Zion Baptist Church is a historic church at 212 Second Street in Anniston , Alabama .. It was built in 1890 and added to the National Register of Historic Places in 1985 .. National Register of Historic Places. National Register of Historic Places
not_related.