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: Global Boundary Stratotype Section and Point | Statement: [Maastrichtian, definedBy, Global Boundary Stratotype Section and Point]

Target entity: Global Boundary Stratotype Section and Point
Context triple: [Maastrichtian, definedBy, Global Boundary Stratotype Section and Point]

• 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. 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.
• C. International Chronostratigraphic Chart
  The International Chronostratigraphic Chart is the globally recognized standard timeline used by geologists to define and correlate the divisions of Earth’s geological history.
• D. International Commission on Stratigraphy
  The International Commission on Stratigraphy is the global scientific authority responsible for defining and standardizing the geological time scale and stratigraphic units used in Earth sciences.
• E. Lomagundi–Jatuli carbon isotope excursion
  The Lomagundi–Jatuli carbon isotope excursion was a major global perturbation in the carbon cycle during the Paleoproterozoic, marked by unusually high carbon isotope ratios that suggest prolonged burial of organic carbon and significant changes in Earth’s atmosphere and oceans.
• 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: Global Boundary Stratotype Section and Point
Triple: [Maastrichtian, definedBy, Global Boundary Stratotype Section and Point]

The Global Boundary Stratotype Section and Point (GSSP) is an internationally agreed reference point in a specific rock sequence that precisely defines the lower boundary of a stage or age in the geologic time scale.

Target entity: Global Boundary Stratotype Section and Point
Target entity description: The Global Boundary Stratotype Section and Point (GSSP) is an internationally agreed reference point in a specific rock sequence that precisely defines the lower boundary of a stage or age in the geologic time scale.

• 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. 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.
• C. International Chronostratigraphic Chart
  The International Chronostratigraphic Chart is the globally recognized standard timeline used by geologists to define and correlate the divisions of Earth’s geological history.
• D. International Commission on Stratigraphy
  The International Commission on Stratigraphy is the global scientific authority responsible for defining and standardizing the geological time scale and stratigraphic units used in Earth sciences.
• E. Lomagundi–Jatuli carbon isotope excursion
  The Lomagundi–Jatuli carbon isotope excursion was a major global perturbation in the carbon cycle during the Paleoproterozoic, marked by unusually high carbon isotope ratios that suggest prolonged burial of organic carbon and significant changes in Earth’s atmosphere and oceans.
• F. None of above. chosen