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: Kahn system of reinforced concrete | Statement: [Julius Kahn, developed, Kahn system of reinforced concrete]

Target entity: Kahn system of reinforced concrete
Context triple: [Julius Kahn, developed, Kahn system of reinforced concrete]

• A. Dom-ino structural system
  The Dom-ino structural system is Le Corbusier’s pioneering open-floor concrete frame concept that uses free-standing columns and flat slabs to allow flexible, non-load-bearing walls and liberated facades.
• B. Self-Consolidating Concrete
  Self-Consolidating Concrete is a highly flowable, non-segregating concrete that spreads into place and fills formwork under its own weight without the need for mechanical vibration.
• C. Size Effect in Concrete Structures
  "Size Effect in Concrete Structures" is a seminal work in structural engineering that explains how the strength and failure behavior of concrete structures change with their size, fundamentally influencing modern design and fracture mechanics of concrete.
• D. Design of Prestressed Concrete Structures
  "Design of Prestressed Concrete Structures" is a foundational engineering textbook that systematically presents the theory, design principles, and practical applications of prestressed concrete for structural engineers.
• E. Pombaline cage anti-seismic building design
  The Pombaline cage anti-seismic building design is an 18th-century Portuguese structural system using an internal wooden lattice frame within masonry walls to improve buildings’ resistance to earthquakes.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Kahn system of reinforced concrete
Target entity description: The Kahn system of reinforced concrete is an early 20th-century structural method that used specially shaped steel bars to improve the strength and efficiency of concrete beams and slabs in building construction.

• A. Dom-ino structural system
  The Dom-ino structural system is Le Corbusier’s pioneering open-floor concrete frame concept that uses free-standing columns and flat slabs to allow flexible, non-load-bearing walls and liberated facades.
• B. Self-Consolidating Concrete
  Self-Consolidating Concrete is a highly flowable, non-segregating concrete that spreads into place and fills formwork under its own weight without the need for mechanical vibration.
• C. Size Effect in Concrete Structures
  "Size Effect in Concrete Structures" is a seminal work in structural engineering that explains how the strength and failure behavior of concrete structures change with their size, fundamentally influencing modern design and fracture mechanics of concrete.
• D. Design of Prestressed Concrete Structures
  "Design of Prestressed Concrete Structures" is a foundational engineering textbook that systematically presents the theory, design principles, and practical applications of prestressed concrete for structural engineers.
• E. Pombaline cage anti-seismic building design
  The Pombaline cage anti-seismic building design is an 18th-century Portuguese structural system using an internal wooden lattice frame within masonry walls to improve buildings’ resistance to earthquakes.
• F. None of above. chosen