With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Papua New Guinea is a country.
text_B: Sphaerophoria scripta , the long hoverfly , is a species of hoverfly belonging to the family Syrphidae .. Syrphidae. Hoverfly. Sphaerophoria. Sphaerophoria. species. species. hoverfly. hoverfly
not_related.