With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Saamy was written by Hari.
text_B: Satyrium buchananii is a species of ground orchid occurring from Tanzania to Southern tropical Africa .. Satyrium. Satyrium ( plant ). orchid. Orchidaceae. Like other Satyriums , it is a tuber geophyte .. tuber. tuber. geophyte. Storage organ
not_related.