With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Joe Hart was temporarily part of a lawsuit.
text_B: The 50th Royal Tank Regiment -LRB- 50 RTR -RRB- was an armoured regiment of the British Army 's Royal Tank Regiment during the Second World War .. British Army. British Army. Royal Tank Regiment. Royal Tank Regiment. Second World War. Second World War. It was part of the Royal Tank Regiment , itself part of the Royal Armoured Corps .. Royal Tank Regiment. Royal Tank Regiment. Royal Armoured Corps. Royal Armoured Corps. It was originally formed as a duplicate of the 44th Royal Tank Regiment , a newly mobilised Territorial Army unit .. Royal Tank Regiment. Royal Tank Regiment. 44th Royal Tank Regiment. 44th Royal Tank Regiment. Territorial Army. Territorial Army ( United Kingdom )
not_related.