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: Prandtl–Reuss equations | Statement: [Ludwig Prandtl, notableFor, Prandtl–Reuss equations]

Target entity: Prandtl–Reuss equations
Context triple: [Ludwig Prandtl, notableFor, Prandtl–Reuss equations]

• A. Drucker stability postulate in plasticity
  The Drucker stability postulate in plasticity is a fundamental criterion in continuum mechanics that asserts stable inelastic material behavior requires non-negative plastic work during any admissible loading path, ensuring physically realistic and stable responses in plasticity models.
• B. Piola–Kirchhoff stress tensors
  Piola–Kirchhoff stress tensors are alternative measures of stress in continuum mechanics that describe forces with respect to a material’s reference configuration rather than its current deformed state.
• C. Foundations of Solid Mechanics
  Foundations of Solid Mechanics is a seminal textbook by biomechanical engineer Yuan-Cheng Fung that rigorously develops the theoretical principles governing the mechanical behavior of solid materials.
• D. Mooney-Rivlin theory
  Mooney-Rivlin theory is a constitutive model in continuum mechanics that describes the nonlinear elastic behavior of rubber-like materials using a specific strain energy function.
• E. Theory of Elasticity
  Theory of Elasticity is a branch of continuum mechanics that studies how solid materials deform and return to their original shape under applied forces.
• 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: Prandtl–Reuss equations
Triple: [Ludwig Prandtl, notableFor, Prandtl–Reuss equations]

The Prandtl–Reuss equations are fundamental constitutive relations in plasticity theory that describe how ductile materials yield and undergo irreversible deformation under complex stress states.

Target entity: Prandtl–Reuss equations
Target entity description: The Prandtl–Reuss equations are fundamental constitutive relations in plasticity theory that describe how ductile materials yield and undergo irreversible deformation under complex stress states.

• A. Drucker stability postulate in plasticity
  The Drucker stability postulate in plasticity is a fundamental criterion in continuum mechanics that asserts stable inelastic material behavior requires non-negative plastic work during any admissible loading path, ensuring physically realistic and stable responses in plasticity models.
• B. Piola–Kirchhoff stress tensors
  Piola–Kirchhoff stress tensors are alternative measures of stress in continuum mechanics that describe forces with respect to a material’s reference configuration rather than its current deformed state.
• C. Foundations of Solid Mechanics
  Foundations of Solid Mechanics is a seminal textbook by biomechanical engineer Yuan-Cheng Fung that rigorously develops the theoretical principles governing the mechanical behavior of solid materials.
• D. Mooney-Rivlin theory
  Mooney-Rivlin theory is a constitutive model in continuum mechanics that describes the nonlinear elastic behavior of rubber-like materials using a specific strain energy function.
• E. Theory of Elasticity
  Theory of Elasticity is a branch of continuum mechanics that studies how solid materials deform and return to their original shape under applied forces.
• F. None of above. chosen