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: SPEAR storage ring | Statement: [SPEAR2, isUpgradeOf, SPEAR storage ring]

Target entity: SPEAR storage ring
Context triple: [SPEAR2, isUpgradeOf, SPEAR storage ring]

• A. SPEAR storage ring chosen
  The SPEAR storage ring is an electron storage ring at SLAC National Accelerator Laboratory that historically served as both a particle physics collider and a synchrotron radiation source, forming the basis for later upgrades like SPEAR3.
• B. PEP-II storage ring
  The PEP-II storage ring was an asymmetric-energy electron–positron collider at SLAC designed to produce large numbers of B mesons for precision studies of CP violation and other aspects of particle physics.
• C. Antiproton Accumulator
  The Antiproton Accumulator was a storage and cooling ring at CERN designed to collect, cool, and accumulate antiprotons for high-energy proton–antiproton collision experiments.
• D. Fermilab Recycler Ring
  The Fermilab Recycler Ring is a storage and cooling ring in the Fermilab accelerator complex used to accumulate and prepare high-intensity proton beams for further acceleration and experiments.
• E. 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.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.