With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: William Cage is ordered by his supervisor to film the first wave of a landing operation against aliens.
text_B: Checkerspot was a biannual climate change magazine in Canada published by the Canadian Wildlife Federation .. climate change. climate change. magazine. magazine. Canada. Canada. Canadian Wildlife Federation. Canadian Wildlife Federation. A free magazine , its inaugural issue was launched May 2007 and stopped production in 2009 due to the economic downturn .. magazine. magazine. Checkerspot claimed to be a climate neutral publication .. climate neutral. climate neutral. The magazine was named after a butterfly whose ranges were believed to be shifting as a result of global warming .. magazine. magazine. butterfly. butterfly. global warming. global warming
not_related.