With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Houston has a population from various ethnic and racial backgrounds.
text_B: Harry Gesner -LRB- born 1925 -RRB- is an influential California architect .. California. California. Born and raised in Southern California , his designs are found in locations including Malibu and the Getty Museum .. California. California. Following service in World War II , Gesner studied architecture at Yale .. World War II. World War II. Gesner became internationally known for his visionary style .. His Wave House -LRB- 1957 -RRB- was an inspiration for the Sydney Opera House by Danish architect Jørn Utzon .. Wave House. Wave House. Sydney Opera House. Sydney Opera House. Jørn Utzon. Jørn Utzon
not_related.