With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Zinedine Zidane was a footballer for Real Madrid.
text_B: Celebrity Big Brother 11 was the eleventh series of the British reality television series Celebrity Big Brother .. Celebrity Big Brother. Celebrity Big Brother. British. Television in the United Kingdom. reality television. reality television. Big Brother. Big Brother ( UK TV series ). It launched on 3 January 2013 , and aired on Channel 5 and 5 * for 23 days concluding on 25 January 2013 .. Channel 5. Channel 5 ( UK ). The series is part of a new two-year contract signed by Channel 5 with Endemol to air the show until 2014 .. Channel 5. Channel 5 ( UK ). Endemol. Endemol UK. The series was won by Rylan Clark , with Heidi Montag and Spencer Pratt as runners-up .. Rylan Clark. Rylan Clark. Heidi Montag. Heidi Montag. Spencer Pratt. Spencer Pratt. It was the fourth celebrity series to air on Channel 5 and the sixth series of Big Brother to air on the broadcaster since they acquired the show .. Channel 5. Channel 5 ( UK ). Big Brother. Big Brother ( UK TV series ). With an average of 2.8 million , this was the highest rated series of the show -LRB- alongside Celebrity Big Brother 8 -RRB- since its move to Channel 5 , until it was surpassed by Celebrity Big Brother 13 in January 2014 .. Celebrity Big Brother. Celebrity Big Brother. Channel 5. Channel 5 ( UK ). Big Brother. Big Brother ( UK TV series ). Celebrity Big Brother 8. Celebrity Big Brother 8. Celebrity Big Brother 13. Celebrity Big Brother 13. It was also the last series of Big Brother to be presented by Brian Dowling , who was replaced by Emma Willis from the fourteenth regular series onwards .. Big Brother. Big Brother ( UK TV series ). Brian Dowling. Brian Dowling ( presenter ). Emma Willis. Emma Willis. fourteenth regular series. Big Brother 14 ( UK ). In 2017 , Heidi & Spencer returned to the house for Celebrity Big Brother 19 as All-Stars , representing this series .. Celebrity Big Brother. Celebrity Big Brother. Big Brother. Big Brother ( UK TV series ). Celebrity Big Brother 19. Celebrity Big Brother 19. They were the eighth housemates to be evicted .
not_related.