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: Server Name Indication extension | Statement: [RFC 3546, defines, Server Name Indication extension]

Target entity: Server Name Indication extension
Context triple: [RFC 3546, defines, Server Name Indication extension]

• A. ALPN (Application-Layer Protocol Negotiation)
  ALPN (Application-Layer Protocol Negotiation) is a TLS extension that allows clients and servers to agree on which application-layer protocol (such as HTTP/2 or SPDY) to use over a secure connection during the TLS handshake.
• B. NPN (Next Protocol Negotiation)
  NPN (Next Protocol Negotiation) is a now-deprecated TLS extension that allowed a client and server to agree on which application-layer protocol (such as SPDY or HTTP/2) to use over a secure connection.
• C. SSL
  SSL (Secure Sockets Layer) is a cryptographic protocol designed to provide secure, encrypted communication over a computer network, commonly used to protect data transmitted between clients and servers.
• D. DNS over TLS
  DNS over TLS is a security protocol that encrypts traditional DNS queries and responses using Transport Layer Security to protect user privacy and prevent eavesdropping or tampering.
• E. RFC 5246
  RFC 5246 is the Internet Engineering Task Force (IETF) standard that specifies Transport Layer Security (TLS) version 1.2, a widely used protocol for securing communications over computer networks.
• 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: Server Name Indication extension
Triple: [RFC 3546, defines, Server Name Indication extension]

The Server Name Indication (SNI) extension is a TLS protocol feature that allows a client to indicate the hostname it is trying to connect to at the start of the handshake so that the server can present the correct certificate for virtual hosting.

Target entity: Server Name Indication extension
Target entity description: The Server Name Indication (SNI) extension is a TLS protocol feature that allows a client to indicate the hostname it is trying to connect to at the start of the handshake so that the server can present the correct certificate for virtual hosting.

• A. ALPN (Application-Layer Protocol Negotiation)
  ALPN (Application-Layer Protocol Negotiation) is a TLS extension that allows clients and servers to agree on which application-layer protocol (such as HTTP/2 or SPDY) to use over a secure connection during the TLS handshake.
• B. NPN (Next Protocol Negotiation)
  NPN (Next Protocol Negotiation) is a now-deprecated TLS extension that allowed a client and server to agree on which application-layer protocol (such as SPDY or HTTP/2) to use over a secure connection.
• C. SSL
  SSL (Secure Sockets Layer) is a cryptographic protocol designed to provide secure, encrypted communication over a computer network, commonly used to protect data transmitted between clients and servers.
• D. DNS over TLS
  DNS over TLS is a security protocol that encrypts traditional DNS queries and responses using Transport Layer Security to protect user privacy and prevent eavesdropping or tampering.
• E. RFC 5246
  RFC 5246 is the Internet Engineering Task Force (IETF) standard that specifies Transport Layer Security (TLS) version 1.2, a widely used protocol for securing communications over computer networks.
• F. None of above. chosen