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: Langdon Clemens | Statement: [Samuel Langhorne Clemens, child, Langdon Clemens]

Target entity: Langdon Clemens
Context triple: [Samuel Langhorne Clemens, child, Langdon Clemens]

• A. Langdon Clemens chosen
  Langdon Clemens was the firstborn son of American author Mark Twain (Samuel Clemens), who died in infancy.
• B. Charles Dudley Warner
  Charles Dudley Warner was a 19th-century American essayist and novelist best known for co-authoring "The Gilded Age: A Tale of Today" with Mark Twain, which gave its name to the era of rapid economic growth and social inequality in post–Civil War America.
• C. Una Hawthorne
  Una Hawthorne was the eldest daughter of American novelist Nathaniel Hawthorne and his wife Sophia Peabody, known from family letters and biographies as a sensitive and imaginative figure marked by fragile health and a troubled later life.
• D. Mark Twain
  Mark Twain was a renowned 19th-century American author and humorist, best known for works like "The Adventures of Tom Sawyer" and "Adventures of Huckleberry Finn."
• E. William Dean Howells
  William Dean Howells was a prominent 19th-century American realist author, critic, and editor often called the "Dean of American Letters."
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.