With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Christopher Nolan was a music video director.
text_B: Padraig Augustine O Siochain -LRB- P. A. -RRB- -LRB- 1905 -- 1995 -RRB- was an Irish journalist , author , lawyer , Irish language activist and entrepreneur , born in Kanturk , County Cork , Ireland on 26 May 1905 , the sixth child and fourth son of five sons and five daughters of Daniel Desmond -LRB- D. D. -RRB- Sheehan BL , MP for Mid-Cork , of Kanturk , and Mary Pauline -LRB- nee O'Connor -RRB- from Tralee , County Kerry .. Irish. Irish people. Irish language. Irish language. Kanturk. Kanturk. County Cork. County Cork. Tralee. Tralee. County Kerry. County Kerry
not_related.