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: MARC 21 Classification | Statement: [MARC standards, hasComponent, MARC 21 Classification]

Target entity: MARC 21 Classification
Context triple: [MARC standards, hasComponent, MARC 21 Classification]

• A. MARC standards
  MARC standards are a set of bibliographic data formats used worldwide to structure and exchange library catalog information in a consistent, machine-readable way.
• B. Library of Congress Classification
  Library of Congress Classification is a comprehensive alphanumeric library classification system used primarily by academic and research libraries to organize and arrange their collections by subject.
• C. MARC
  MARC is a commuter rail service in Maryland that connects Washington, D.C. with Baltimore and other regional destinations.
• D. Dewey Decimal Classification
  Dewey Decimal Classification is a widely used library classification system that organizes knowledge into ten main subject classes, each subdivided into more specific numeric categories.
• E. Library of Congress Subject Headings
  Library of Congress Subject Headings is a comprehensive controlled vocabulary used by libraries worldwide to provide standardized subject access to cataloged materials.
• 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: MARC 21 Classification
Triple: [MARC standards, hasComponent, MARC 21 Classification]

MARC 21 Classification is a component of the MARC 21 family of library metadata standards that provides a machine-readable format for encoding and exchanging classification data such as call numbers and classification schemes.

Target entity: MARC 21 Classification
Target entity description: MARC 21 Classification is a component of the MARC 21 family of library metadata standards that provides a machine-readable format for encoding and exchanging classification data such as call numbers and classification schemes.

• A. MARC standards chosen
  MARC standards are a set of bibliographic data formats used worldwide to structure and exchange library catalog information in a consistent, machine-readable way.
• B. Library of Congress Classification
  Library of Congress Classification is a comprehensive alphanumeric library classification system used primarily by academic and research libraries to organize and arrange their collections by subject.
• C. MARC
  MARC is a commuter rail service in Maryland that connects Washington, D.C. with Baltimore and other regional destinations.
• D. Dewey Decimal Classification
  Dewey Decimal Classification is a widely used library classification system that organizes knowledge into ten main subject classes, each subdivided into more specific numeric categories.
• E. Library of Congress Subject Headings
  Library of Congress Subject Headings is a comprehensive controlled vocabulary used by libraries worldwide to provide standardized subject access to cataloged materials.
• F. None of above.