With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Lewis Hamilton was named Sports Personality of the Year.
text_B: Richard Powers is an expert in American social dance , noted for his choreographies for dozens of stage productions and films , and his workshops in Paris , Rome , Prague , London , Venice , Geneva , St. Petersburg and Tokyo as well as across the U.S. and Canada .. American. United States. social dance. social dance. He has been researching and reconstructing historic social dances for twenty-five years and is currently a full-time instructor at Stanford University Dance Division .. Stanford University. Stanford University. He teaches a variety of social dance history and practicum classes for the dance division of the Stanford University Drama Department .. social dance. social dance. Stanford University. Stanford University. He joined the Dance Faculty in 1992 and serves as a faculty liaison to the Friends of Dance at Stanford organization .. Richard co-founded the Flying Cloud Academy of Vintage Dance -LRB- 1981 -RRB- to produce large-scale monthly recreations of Victorian and Ragtime Balls .. Formed the Flying Cloud Troupe , a 30-member performing company -LRB- 1982 -RRB- and co-founded the supporting Fleeting Moments Waltz & Quickstep Orchestra .. Richard started and directed the Stanford Vintage Dance Ensemble -LRB- 1992 -RRB- and serves as an advisor and choreographer for the Swingtime Dance Troupe .. Stanford Vintage Dance Ensemble. Stanford Vintage Dance Ensemble. Swingtime Dance Troupe. Swingtime Dance Troupe
not_related.