With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Howard Stern quit radio in 2005.
text_B: Teja Singh was a Sikh scholar , teacher , author and translator .. Teja Singh. Teja Singh. Teja Singh may also refer to  :. Teja Singh. Teja Singh. Teja Singh Samundri , founder of Shiromani Gurdwara Prabandhak Committee. Teja Singh. Teja Singh. Teja Singh Samundri. Teja Singh Samundri. Teja Singh Akarpuri , Indian politician and freedom fighter from Punjab. Teja Singh. Teja Singh. Teja Singh Akarpuri. Teja Singh Akarpuri. Teja Singh Sutantar , freedom fighter and member of Ghadar Party. Teja Singh. Teja Singh. Teja Singh Sutantar. Teja Singh Sutantar
not_related.