With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Erich von Manstein died before ever being released.
text_B: Marasmiellus is a genus of fungi in the family Marasmiaceae .. Marasmiaceae. Marasmiaceae. genus. genus. fungi. fungi. The widespread genus , circumscribed by American mycologist William Murrill in 1915 , contains about 250 species .. Murrill. William Alphonso Murrill. genus. genus. circumscribed. circumscription ( taxonomy ). William Murrill. William Murrill. The name comes from the Greek marasmus meaning wasting .. Greek. Greek ( language ). marasmus. marasmus
not_related.