Triple

Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).

Phrase: Buna synthetic rubber plant | Statement: [Monowitz concentration camp, builtFor, Buna synthetic rubber plant]

Target entity: Buna synthetic rubber plant
Context triple: [Monowitz concentration camp, builtFor, Buna synthetic rubber plant]

• A. Rubber Factory
  "Rubber Factory" is a 2004 blues-rock album by American duo The Black Keys, known for its raw, lo-fi sound and gritty guitar-driven tracks.
• B. K-27 plant
  The K-27 plant was a major uranium enrichment facility at the Oak Ridge site that used gaseous diffusion technology as part of the U.S. nuclear weapons and energy programs.
• C. Plant No. 23
  Plant No. 23 was a major Soviet-era aerospace manufacturing facility that later became known as the Khrunichev State Research and Production Space Center, a key producer of launch vehicles and space technology.
• D. Castilloa rubber
  Castilloa rubber is a natural latex obtained from the tropical tree Castilla elastica, historically used as an alternative source of rubber in Central and South America.
• E. Plant No. 112
  Plant No. 112 is the former name of the Krasnoye Sormovo Factory, a major Russian industrial enterprise known for shipbuilding and heavy machinery production.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Buna synthetic rubber plant
Target entity description: The Buna synthetic rubber plant was a large industrial facility near Auschwitz that used forced labor from the Monowitz concentration camp to produce synthetic rubber for Nazi Germany during World War II.

• A. Rubber Factory
  "Rubber Factory" is a 2004 blues-rock album by American duo The Black Keys, known for its raw, lo-fi sound and gritty guitar-driven tracks.
• B. K-27 plant
  The K-27 plant was a major uranium enrichment facility at the Oak Ridge site that used gaseous diffusion technology as part of the U.S. nuclear weapons and energy programs.
• C. Plant No. 23
  Plant No. 23 was a major Soviet-era aerospace manufacturing facility that later became known as the Khrunichev State Research and Production Space Center, a key producer of launch vehicles and space technology.
• D. Castilloa rubber
  Castilloa rubber is a natural latex obtained from the tropical tree Castilla elastica, historically used as an alternative source of rubber in Central and South America.
• E. Plant No. 112
  Plant No. 112 is the former name of the Krasnoye Sormovo Factory, a major Russian industrial enterprise known for shipbuilding and heavy machinery production.
• F. None of above. chosen