Triple

T8264902
Position Surface form Disambiguated ID Type / Status
Subject NISTAR E193277 entity
Predicate operatedFrom P6602 FINISHED
Object Sun–Earth L1 Lagrange point E193272 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

Instruction
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).
Input
Phrase: Sun–Earth L1 Lagrange point | Statement: [NISTAR, operatedFrom, Sun–Earth L1 Lagrange point]

Disambiguation candidates (1 decision)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Sun–Earth L1 Lagrange point
Context triple: [NISTAR, operatedFrom, Sun–Earth L1 Lagrange point]
  • A. Sun–Earth L1 Lagrange point chosen
    The Sun–Earth L1 Lagrange point is a gravitationally stable location between the Earth and the Sun where spacecraft can maintain a relatively fixed position with minimal fuel, ideal for continuous solar and space weather observations.
  • B. Sun–Earth L2
    Sun–Earth L2 is a gravitationally stable point in space located beyond Earth's orbit where the combined gravity of the Sun and Earth allows spacecraft, such as the James Webb Space Telescope, to maintain a relatively constant position with minimal fuel use.
  • C. Lagrange points
    Lagrange points are specific positions in space where the gravitational forces of two large bodies and the orbital motion of a smaller object balance so that the smaller object can remain in a stable or semi-stable location relative to the two larger bodies.
  • D. Earth-trailing orbit (STEREO-B)
    Earth-trailing orbit (STEREO-B) is the heliocentric path followed by NASA’s STEREO-B spacecraft as it slowly lags behind Earth to provide a unique vantage point for stereoscopic observations of the Sun.
  • E. Lissajous orbit
    A Lissajous orbit is a stable, looping three-dimensional trajectory around a Lagrange point, commonly used by space observatories to maintain a relatively constant position with respect to Earth and the Sun.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

Stage Batch ID Job type Status
creating batch_69ca82e081d48190986beaa51f498ab9 elicitation completed
NER batch_69cb793aa8f08190b20b3616ceb9bec7 ner completed
NED1 batch_69ce1cd748708190a353469043f3046a ned_source_triple completed
Created at: March 30, 2026, 5:49 p.m.