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: Thomas U. Walter | Statement: [Treasury Building, architect, Thomas U. Walter]

Target entity: Thomas U. Walter
Context triple: [Treasury Building, architect, Thomas U. Walter]

• A. Edmund G. Ross
  Edmund G. Ross was a 19th-century U.S. senator from Kansas best known for casting the decisive vote against the impeachment of President Andrew Johnson, an act later celebrated in John F. Kennedy’s "Profiles in Courage."
• B. William R. Day
  William R. Day was an American diplomat, U.S. Secretary of State, and later Associate Justice of the Supreme Court who played a key role in ending the Spanish–American War.
• C. Charles L. Phillippi
  Charles L. Phillippi, better known as Deacon Phillippe, was an early 20th-century Major League Baseball pitcher renowned for his key role with the Pittsburgh Pirates, including in the inaugural 1903 World Series.
• D. George M. Murray
  George M. Murray was a religious leader and co-author of the 1963 "A Call for Unity" statement by white clergymen that criticized civil rights demonstrations in Birmingham, Alabama.
• E. Francis W. Sears
  Francis W. Sears was an American physicist and influential physics educator known for his widely used textbooks and contributions to physics teaching.
• 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: Thomas U. Walter
Triple: [Treasury Building, architect, Thomas U. Walter]

Thomas U. Walter was a prominent 19th-century American architect best known for designing the cast-iron dome of the United States Capitol and shaping key federal buildings in Washington, D.C.

Target entity: Thomas U. Walter
Target entity description: Thomas U. Walter was a prominent 19th-century American architect best known for designing the cast-iron dome of the United States Capitol and shaping key federal buildings in Washington, D.C.

• A. Edmund G. Ross
  Edmund G. Ross was a 19th-century U.S. senator from Kansas best known for casting the decisive vote against the impeachment of President Andrew Johnson, an act later celebrated in John F. Kennedy’s "Profiles in Courage."
• B. William R. Day
  William R. Day was an American diplomat, U.S. Secretary of State, and later Associate Justice of the Supreme Court who played a key role in ending the Spanish–American War.
• C. Charles L. Phillippi
  Charles L. Phillippi, better known as Deacon Phillippe, was an early 20th-century Major League Baseball pitcher renowned for his key role with the Pittsburgh Pirates, including in the inaugural 1903 World Series.
• D. George M. Murray
  George M. Murray was a religious leader and co-author of the 1963 "A Call for Unity" statement by white clergymen that criticized civil rights demonstrations in Birmingham, Alabama.
• E. Francis W. Sears
  Francis W. Sears was an American physicist and influential physics educator known for his widely used textbooks and contributions to physics teaching.
• F. None of above. chosen