With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Emily Blunt refuses to be a film actress.
text_B: Chryseobacterium shandongense is a Gram-negative , rod-shaped , non-spore-forming and non-motile bacteria from the genus of Chryseobacterium which has been isolated from soil .. Chryseobacterium. Chryseobacterium. Gram-negative. Gram-negative. rod-shaped. rod-shaped. spore. spore. non-motile bacteria. non-motile bacteria
not_related.