With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Avengers (2012 film) was written by an American screenwriter.
text_B: Zaglossus hacketti is an extinct species of long-beaked echidna from Western Australia that is dated to the Pleistocene .. Pleistocene. Pleistocene. Zaglossus. Zaglossus. extinct. extinction. species. species. long-beaked echidna. long-beaked echidna. Western Australia. Western Australia. It is known only from a few bones .. It was about 1 m long and probably weighed about 30 kg -LRB- 66 lb -RRB- .. This makes it the largest monotreme known to have ever lived .. largest monotreme. List of largest mammals#Monotreme mammals ( Monotremata ). Due to the lack of cranial material , placement of Z. hacketti into the modern long-beaked echidna genus Zaglossus is uncertain .. Zaglossus. Zaglossus. long-beaked echidna. long-beaked echidna
not_related.