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: tandem Van de Graaff accelerator | Statement: [Koffler Accelerator, hasPart, tandem Van de Graaff accelerator]

Target entity: tandem Van de Graaff accelerator
Context triple: [Koffler Accelerator, hasPart, tandem Van de Graaff accelerator]

• A. Cockcroft–Walton generator
  The Cockcroft–Walton generator is a high-voltage power supply circuit that uses a cascade of capacitors and diodes to multiply an input AC voltage, historically important for early particle acceleration experiments.
• B. Van de Graaff generators chosen
  Van de Graaff generators are electrostatic machines that use a moving belt to accumulate very high voltages on a hollow metal sphere, commonly used for physics research and educational demonstrations of electricity.
• C. Fermilab Linac
  Fermilab Linac is a linear accelerator at Fermilab that provides high-energy proton beams for subsequent acceleration stages in the laboratory’s particle physics experiments.
• D. Continuous Electron Beam Accelerator Facility
  The Continuous Electron Beam Accelerator Facility is a high-energy physics research installation that provides continuous beams of electrons for probing the structure of nuclear matter.
• E. Proton Synchrotron Booster
  The Proton Synchrotron Booster is a circular particle accelerator at CERN that increases the energy of protons from the linear accelerator before injecting them into larger synchrotrons in the accelerator complex.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.