With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Sigmund Freud existed in Vienna.
text_B: Yuriy Borisovich Dyachkov -LRB- Юрии Борисович Дьячков , born 13 July 1940 -RRB- is a retired Soviet decathlete .. He competed at the 1960 Summer Olympics but failed to finish .. 1960 Summer Olympics. 1960 Summer Olympics. He placed sixth at the 1962 European Championships and won the national title in 1965 and 1966 .. 1962 European Championships. 1962 European Athletics Championships – Men's decathlon. Dyachkov is the son of the Olympic discus thrower Nina Dumbadze and athletics coach Boris Dyachkov .. Nina Dumbadze. Nina Dumbadze
not_related.