RFC 1939
E35265
RFC 1939 is the Internet standard document that specifies the Post Office Protocol version 3 (POP3) used for retrieving email from a mail server.
All labels observed (1)
| Label | Occurrences |
|---|---|
| RFC 1939 canonical | 7 |
How this entity was disambiguated
This entity first appeared as the object of triple T270564 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: RFC 1939 Context triple: [POP3, definedIn, RFC 1939]
-
A.
RFC 792
RFC 792 is the Internet standard document that specifies the Internet Control Message Protocol (ICMP), which is used for network diagnostics and error reporting in IP networks.
-
B.
RFC 791
RFC 791 is the foundational Internet standard that specifies the design, structure, and operation of the Internet Protocol version 4 (IPv4).
-
C.
RFC 9113
RFC 9113 is the Internet standards document that specifies the HTTP/2 protocol, defining its framing, semantics, and operational behavior on the web.
-
D.
RFC 2131
RFC 2131 is the Internet Engineering Task Force (IETF) standard that specifies the Dynamic Host Configuration Protocol (DHCP) used for automatic IP address and configuration assignment in IP networks.
-
E.
RFC 9114
RFC 9114 is the Internet standard that specifies HTTP/3, the version of the Hypertext Transfer Protocol that runs over the QUIC transport protocol.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: RFC 1939 Target entity description: RFC 1939 is the Internet standard document that specifies the Post Office Protocol version 3 (POP3) used for retrieving email from a mail server.
-
A.
RFC 792
RFC 792 is the Internet standard document that specifies the Internet Control Message Protocol (ICMP), which is used for network diagnostics and error reporting in IP networks.
-
B.
RFC 791
RFC 791 is the foundational Internet standard that specifies the design, structure, and operation of the Internet Protocol version 4 (IPv4).
-
C.
RFC 9113
RFC 9113 is the Internet standards document that specifies the HTTP/2 protocol, defining its framing, semantics, and operational behavior on the web.
-
D.
RFC 2131
RFC 2131 is the Internet Engineering Task Force (IETF) standard that specifies the Dynamic Host Configuration Protocol (DHCP) used for automatic IP address and configuration assignment in IP networks.
-
E.
RFC 9114
RFC 9114 is the Internet standard that specifies HTTP/3, the version of the Hypertext Transfer Protocol that runs over the QUIC transport protocol.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Internet standard
ⓘ
Request for Comments document ⓘ |
| abbreviation | POP3 ⓘ |
| appliesTo | Internet email ⓘ |
| area | Applications ⓘ |
| category | Standards Track ⓘ |
| defaultPort | 110 ⓘ |
| defines |
POP3 authentication phase
ⓘ
POP3 command set ⓘ POP3 response codes ⓘ POP3 state model ⓘ POP3 transaction phase ⓘ POP3 update phase ⓘ |
| definesKeyword |
DELE
ⓘ
LIST ⓘ NOOP ⓘ PASS ⓘ QUIT ⓘ RETR ⓘ RSET ⓘ STAT ⓘ USER ⓘ |
| format | text ⓘ |
| language | English ⓘ |
| networkModelLayer | Application layer ⓘ |
| obsoletedBy |
RFC 2449
ⓘ
RFC 5034 ⓘ RFC 6856 ⓘ RFC 8314 ⓘ |
| obsoletes | RFC 1725 ⓘ |
| protocolSpecified |
Post Office Protocol version 3
ⓘ
linked to:
POP3
|
| protocolType | application-layer protocol ⓘ |
| publishedBy |
IETF
ⓘ
linked to:
Internet Engineering Task Force
Internet Engineering Task Force ⓘ |
| relatedProtocol |
IMAP
ⓘ
SMTP ⓘ |
| RFCNumber | 1939 ⓘ |
| series |
RFC
ⓘ
linked to:
RFCs
|
| shortTitle | POP3 ⓘ |
| specifiesUsage | retrieving email from a mail server ⓘ |
| standardizes | client access to mailboxes on a mail server ⓘ |
| status | Internet Standard ⓘ |
| stream |
IETF
ⓘ
linked to:
Internet Engineering Task Force
|
| title |
Post Office Protocol - Version 3
ⓘ
linked to:
POP3
|
| transportProtocol |
TCP
ⓘ
linked to:
Transmission Control Protocol
|
| useCase |
download-and-delete email access
ⓘ
offline email reading ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: RFC 1939 Description of subject: RFC 1939 is the Internet standard document that specifies the Post Office Protocol version 3 (POP3) used for retrieving email from a mail server.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.