With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Will Ferrell worked on a technology product.
text_B: Jiri Zeman -LRB- born February 12 , 1982 -RRB- is a Czech professional ice hockey defenceman .. Czech. Czech Republic. ice hockey. ice hockey. defenceman. defenceman. He played with HC Litvinov in the Czech Extraliga during the 2012 -- 13 Czech Extraliga season .. HC Litvinov. HC Litvinov. Czech Extraliga. Czech Extraliga. Czech. Czech Republic
not_related.