With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Genghis Khan existed in the Roman Empire.
text_B: Stachyridopsis is a genus of passerine birds in the Timaliidae family .. Timaliidae. Timaliidae. genus. genus. passerine. passerine. It contains the following species  :. Rufous-fronted babbler , Stachyridopsis rufifrons. Rufous-fronted babbler. Rufous-fronted babbler. Buff-chested babbler , Stachyridopsis ambigua. Buff-chested babbler. Buff-chested babbler. Rufous-capped babbler , Stachyridopsis ruficeps. Rufous-capped babbler. Rufous-capped babbler. Black-chinned babbler , Stachyridopsis pyrrhops. Black-chinned babbler. Black-chinned babbler. Golden babbler , Stachyridopsis chrysaea. Golden babbler. Golden babbler. Deignan 's babbler is treated here as conspecific with the rufous-fronted babbler .. conspecific. conspecific
not_related.