With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Warren Buffett engages in philanthropy.
text_B: Gnorimoschema clavatum is a moth in the Gelechiidae family .. Gelechiidae. Gelechiidae. Gnorimoschema. Gnorimoschema. moth. moth. It was described by Povolny in 1998 .. It is found in North America , where it has been recorded from Saskatchewan .. North America. North America. Saskatchewan. Saskatchewan. The length of the forewings is about 5 mm .. The forewings are deep brown to blackish with a broad whitish stripe and a less distinct whitish subterminal transverse band at three-fourths of the costal margin .. There are mixed blackish and white scales at the apex .. The hindwings are grey with a blackish margin .
not_related.