With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Pranab Mukherjee was born on March 11th, 1935.
text_B: Omphalotropis suturalis is a species of minute , salt marsh snail with an operculum , aquatic gastropod mollusks , or micromollusks , in the family Assimineidae .. Assimineidae. Assimineidae. Omphalotropis. Omphalotropis. species. species. salt marsh. salt marsh. snail. snail. operculum. Operculum ( gastropod ). aquatic. Aquatic animal. gastropod. gastropod. This species is endemic to Guam .. species. species. endemic. Endemism. Guam. Guam
not_related.