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: Triassic–Jurassic boundary GSSP | Statement: [Triassic–Jurassic extinction event, stratigraphicMarker, Triassic–Jurassic boundary GSSP]

Target entity: Triassic–Jurassic boundary GSSP
Context triple: [Triassic–Jurassic extinction event, stratigraphicMarker, Triassic–Jurassic boundary GSSP]

• A. Global Boundary Stratotype Section and Point for base of Hettangian
  The Global Boundary Stratotype Section and Point for the base of the Hettangian is the internationally agreed geological reference point that marks the formal beginning of the Jurassic Period and the Mesozoic era’s post-Triassic recovery interval.
• B. Givetian–Frasnian boundary
  The Givetian–Frasnian boundary marks the internationally recognized stratigraphic transition between the Middle and Late Devonian periods, defined by specific fossil and sedimentary changes in the geologic record.
• C. Subcommission on Triassic Stratigraphy
  The Subcommission on Triassic Stratigraphy is an international scientific body under the International Commission on Stratigraphy that coordinates global research and standards for the subdivision and correlation of Triassic rock layers and time.
• D. Emsian–Eifelian boundary
  The Emsian–Eifelian boundary marks the internationally recognized transition between the Early and Middle Devonian periods in the geologic timescale.
• E. Global Boundary Stratotype Section and Point at Klonk, Czech Republic
  The Global Boundary Stratotype Section and Point at Klonk in the Czech Republic is a formally designated geological reference site that marks the internationally agreed base of the Devonian System and serves as a key standard for correlating Early Devonian rock strata worldwide.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Entity: Triassic–Jurassic boundary GSSP
Triple: [Triassic–Jurassic extinction event, stratigraphicMarker, Triassic–Jurassic boundary GSSP]

The Triassic–Jurassic boundary GSSP is the internationally agreed reference point in a specific rock section that formally defines the transition between the Triassic and Jurassic periods in the geologic time scale.

Target entity: Triassic–Jurassic boundary GSSP
Target entity description: The Triassic–Jurassic boundary GSSP is the internationally agreed reference point in a specific rock section that formally defines the transition between the Triassic and Jurassic periods in the geologic time scale.

• A. Global Boundary Stratotype Section and Point for base of Hettangian chosen
  The Global Boundary Stratotype Section and Point for the base of the Hettangian is the internationally agreed geological reference point that marks the formal beginning of the Jurassic Period and the Mesozoic era’s post-Triassic recovery interval.
• B. Givetian–Frasnian boundary
  The Givetian–Frasnian boundary marks the internationally recognized stratigraphic transition between the Middle and Late Devonian periods, defined by specific fossil and sedimentary changes in the geologic record.
• C. Subcommission on Triassic Stratigraphy
  The Subcommission on Triassic Stratigraphy is an international scientific body under the International Commission on Stratigraphy that coordinates global research and standards for the subdivision and correlation of Triassic rock layers and time.
• D. Emsian–Eifelian boundary
  The Emsian–Eifelian boundary marks the internationally recognized transition between the Early and Middle Devonian periods in the geologic timescale.
• E. Global Boundary Stratotype Section and Point at Klonk, Czech Republic
  The Global Boundary Stratotype Section and Point at Klonk in the Czech Republic is a formally designated geological reference site that marks the internationally agreed base of the Devonian System and serves as a key standard for correlating Early Devonian rock strata worldwide.
• F. None of above.

Target predicate: stratigraphicMarker
Context triple: [Triassic–Jurassic extinction event, stratigraphicMarker, Triassic–Jurassic boundary GSSP]

• A. usedAsChronostratigraphicMarkerFor chosen
  Indicates that something serves as a reference point or marker for defining or correlating geological time intervals in a chronostratigraphic framework.
• B. hasStratigraphicFeature
  Indicates a relationship in which a geological unit, site, or context contains, exhibits, or is associated with a particular stratigraphic feature (such as a layer, horizon, or boundary) within its stratigraphic sequence.
• C. hasStratigraphicPosition
  Indicates the relative position of one geological layer or unit within a stratigraphic sequence in relation to another.
• D. globalBoundaryStratotypeSectionAndPoint
  Indicates the formally designated reference point and stratigraphic section that define the global boundary between two geological time units.
• E. hasChronostratigraphicUnit
  Indicates a relationship where something is associated with, or classified by, a specific chronostratigraphic unit (a defined interval of geological time represented by rock layers).
• F. None of above.