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: S/MIME security services | Statement: [RFC 8551, defines, S/MIME security services]

Target entity: S/MIME security services
Context triple: [RFC 8551, defines, S/MIME security services]

• A. S/MIME chosen
  S/MIME is a widely used standard for secure email that provides encryption and digital signatures using public key cryptography.
• B. SMTP Service Extension for Secure SMTP over Transport Layer Security
  SMTP Service Extension for Secure SMTP over Transport Layer Security is an IETF standard (RFC 3207) that defines how to use TLS to provide encryption and secure authentication for SMTP email transmissions.
• C. Cleartext Considered Obsolete: Use of Transport Layer Security (TLS) for Email Submission and Access
  "Cleartext Considered Obsolete: Use of Transport Layer Security (TLS) for Email Submission and Access" (RFC 8314) is an IETF standards-track document that recommends and defines best practices for using TLS to secure email submission and retrieval protocols instead of unencrypted connections.
• D. Secrecy, Authentication, and Public Key Systems
  "Secrecy, Authentication, and Public Key Systems" is Ralph Merkle's influential doctoral thesis that helped lay the foundations of modern public-key cryptography and secure communication protocols.
• E. PKI
  PKI is the abbreviation for Partai Komunis Indonesia, the former communist party of Indonesia that played a major role in the country’s mid-20th-century political history.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.