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: Lagrange’s mean value theorem | Statement: [Cauchy’s mean value theorem, hasSpecialCase, Lagrange’s mean value theorem]

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: Lagrange’s mean value theorem
Triple: [Cauchy’s mean value theorem, hasSpecialCase, Lagrange’s mean value theorem]

Lagrange’s mean value theorem is a fundamental result in calculus that guarantees, for a differentiable function on a closed interval, the existence of at least one point where the instantaneous rate of change equals the average rate of change over that interval.