Kharkiv NKVD prison

Target entity: Kharkiv NKVD prison
Context triple: [Katyń Memorial Day, locationOfPrimaryEvent, Kharkiv NKVD prison]

• A. Vladimir Central Prison
  Vladimir Central Prison is a notorious high-security penitentiary in Vladimir, Russia, historically used to hold prominent political prisoners and other high-profile inmates.
• B. Verkhneuralsk prison
  Verkhneuralsk prison was a Soviet detention facility in the Chelyabinsk region, notorious for holding political prisoners during the Stalinist era.
• C. Trubetskoy Bastion Prison
  Trubetskoy Bastion Prison was a notorious high-security political prison within the Peter and Paul Fortress in Saint Petersburg, used by the Russian Empire and later regimes to incarcerate dissidents and revolutionaries.
• D. Solovki prison camp
  Solovki prison camp was one of the earliest and most infamous Soviet forced-labor camps, located on the Solovetsky Islands and often seen as a prototype for the wider Gulag system.
• E. Ostashkov camp
  Ostashkov camp was a Soviet NKVD prisoner-of-war and labor camp during World War II, notorious as one of the main sites where Polish officers and intelligentsia were detained prior to their execution in the Katyn massacre.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Kharkiv NKVD prison
Target entity description: The Kharkiv NKVD prison was a Soviet secret police detention site in Kharkiv, Ukraine, notorious as one of the main locations where Polish officers and intelligentsia were executed during the 1940 Katyn massacre.

• A. Vladimir Central Prison
  Vladimir Central Prison is a notorious high-security penitentiary in Vladimir, Russia, historically used to hold prominent political prisoners and other high-profile inmates.
• B. Verkhneuralsk prison
  Verkhneuralsk prison was a Soviet detention facility in the Chelyabinsk region, notorious for holding political prisoners during the Stalinist era.
• C. Trubetskoy Bastion Prison
  Trubetskoy Bastion Prison was a notorious high-security political prison within the Peter and Paul Fortress in Saint Petersburg, used by the Russian Empire and later regimes to incarcerate dissidents and revolutionaries.
• D. Solovki prison camp
  Solovki prison camp was one of the earliest and most infamous Soviet forced-labor camps, located on the Solovetsky Islands and often seen as a prototype for the wider Gulag system.
• E. Ostashkov camp
  Ostashkov camp was a Soviet NKVD prisoner-of-war and labor camp during World War II, notorious as one of the main sites where Polish officers and intelligentsia were detained prior to their execution in the Katyn massacre.
• F. None of above. chosen