With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Paris Hilton's first released single was a number one hit in Scotland.
text_B: Misfire may refer to  :. Misfire -LRB- Transformers -RRB- , the Transformers character. Misfire -LRB- 2012 film -RRB-. Misfire -LRB- 2014 film -RRB-. Misfire -LRB- That '70s Show -RRB- , an episode from That '70s Show. Misfiring behavior , in biology. Misfiring behavior. Misfiring behavior. An engine misfire , see engine knocking. engine knocking. engine knocking. A song on Queen 's album Sheer Heart Attack. Sheer Heart Attack. Sheer Heart Attack. A cartridge that does not discharge or that only partially discharges when fired in a cartridge-firing firearm .. cartridge. Cartridge ( firearms ). A muzzleloader that does not fire when the trigger is squeezed .. muzzleloader. muzzleloader
not_related.