With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Twilight's first novel was released in the 2000s.
text_B: Cefn may refer to  :. Places. Cefn -LRB- community -RRB- , in Wrexham county borough , Wales. Cefn Mawr , a large village in the community of Cefn. Cefn Mawr. Cefn Mawr. Cefn Fault , a geological fault in Wales. Cefn Fault. Cefn Fault. Sport. Cefn Druids A.F.C. , a football club based in Cefn Mawr , playing in the Cymru Alliance .. Cefn Mawr. Cefn Mawr. F.C. Cefn , a football club based in Cefn Mawr , playing in the Welsh National League -LRB- Wrexham Area -RRB- Premier Division. Cefn Mawr. Cefn Mawr. F.C. Cefn. F.C. Cefn
not_related.