With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: David Tennant was never on British television.
text_B: Patrick O'Collun -LRB- also known as Patrick Cullen or Patrick Collen -RRB- -LRB- died 1594 -RRB- was an Irish soldier and fencing master who was executed at Tyburn in 1594 for treason , in that he had conspired to murder Queen Elizabeth I.. Irish. Irish people. Tyburn. Tyburn. treason. treason. Queen Elizabeth I. Queen Elizabeth I
not_related.