With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tokyo ranked eighth in an index pertaining to alpha cities.
text_B: The James F. Clarke House is a historic residence located in Fairfield , Iowa , United States .. This Prairie School house was built for Dr. Clarke in 1916 .. Prairie School. Prairie School. It was designed by Francis Barry Byrne , a student of Frank Lloyd Wright .. Francis Barry Byrne. Francis Barry Byrne. Frank Lloyd Wright. Frank Lloyd Wright. Byrne was a part of the Prairie School until its demise , and this house shows his movement away from its formal expression , but not its ideals .. Prairie School. Prairie School. The two-story brick structure is capped with a low-pitched gable roof .. gable. gable. It follows the idiom 's use of open and flowing plans , but deviates in its use of simpler decorative forms and De Stijl-like colors .. De Stijl. De Stijl. The windows , doors and baseboards are all plain and flat .. Clarke was one of the first people in Jefferson County to own an automobile , and the house has one of the first attached garages .. Jefferson County. Jefferson County, Iowa. It was listed on the National Register of Historic Places in 1980 .. National Register of Historic Places. National Register of Historic Places
not_related.