With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Arnold Schwarzenegger did not win the Mr. Universe title at age 20.
text_B: The Idaho High School Activities Association -LRB- IHSAA -RRB- oversees high school athletics and activities in the state of Idaho .. Idaho. Idaho. high school. high school. Idaho high schools are classified in five categories , based on enrollment , for league competition and state playoffs and championships .. Idaho. Idaho. Schools primarily compete within their own classification for regular season play , but are allowed to play other schools one classification above or below them in most sports .
not_related.