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: 2.1-meter Otto Struve Telescope | Statement: [McDonald Observatory, hasTelescope, 2.1-meter Otto Struve Telescope]

Target entity: 2.1-meter Otto Struve Telescope
Context triple: [McDonald Observatory, hasTelescope, 2.1-meter Otto Struve Telescope]

• A. Otto Struve Telescope chosen
  The Otto Struve Telescope is a historic 2.1-meter reflecting telescope at McDonald Observatory in Texas, notable for being one of the largest telescopes in the world when it began operation in the late 1930s.
• B. Dall–Kirkham telescope
  The Dall–Kirkham telescope is a reflecting telescope design that uses an elliptical primary mirror and spherical secondary mirror to provide good on-axis performance with relatively simple, economical optics.
• C. 20 Meter Telescope
  The 20 Meter Telescope is a mid-sized radio telescope at the Green Bank Observatory used for astronomical research and education in radio astronomy.
• D. 100-inch Hooker telescope
  The 100-inch Hooker telescope is a historic reflecting telescope at Mount Wilson Observatory, famous for Edwin Hubble’s observations that revealed the expanding universe and established galaxies beyond the Milky Way.
• E. Burrell Schmidt Telescope
  The Burrell Schmidt Telescope is a wide-field Schmidt telescope known for deep imaging of galaxies and faint astronomical structures, located at Kitt Peak National Observatory in Arizona.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.