With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Swedish Empire was ruled by Gustavus Adolphus before he died in 1630s.
text_B: Hednota aurantiacus is a moth in the Crambidae family .. Crambidae. Crambidae. Hednota. Hednota. moth. moth. It was described by Meyrick in 1879 .. Meyrick. Edward Meyrick. It is found in Australia .. Australia. Australia
not_related.