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: Einstein Observatory (HEAO-2) | Statement: [High Energy Astrophysics Science Archive Research Center, hostMissionArchive, Einstein Observatory (HEAO-2)]

Target entity: Einstein Observatory (HEAO-2)
Context triple: [High Energy Astrophysics Science Archive Research Center, hostMissionArchive, Einstein Observatory (HEAO-2)]

• A. Einstein Observatory chosen
  The Einstein Observatory was NASA’s first fully imaging X-ray telescope in space, pioneering high-resolution X-ray astronomy of cosmic sources.
• B. Compton Gamma Ray Observatory
  The Compton Gamma Ray Observatory was a NASA space telescope dedicated to observing high-energy gamma-ray emissions from cosmic sources, significantly advancing our understanding of phenomena like gamma-ray bursts, pulsars, and active galactic nuclei.
• C. Chandra X-ray Observatory
  The Chandra X-ray Observatory is a space-based telescope that observes high-energy X-ray emissions from hot regions of the universe, such as exploded stars, galaxy clusters, and matter around black holes.
• D. Extreme Ultraviolet Explorer
  Extreme Ultraviolet Explorer was a NASA space telescope mission that operated in the extreme ultraviolet wavelength range to study hot stars, white dwarfs, and the interstellar medium.
• E. Infrared Astronomical Satellite
  The Infrared Astronomical Satellite (IRAS) was a pioneering space telescope launched in 1983 that conducted the first-ever all-sky survey at infrared wavelengths, dramatically expanding knowledge of stars, galaxies, and cosmic dust.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.