Media Mail
E13976
Media Mail is a discounted U.S. Postal Service shipping option specifically for sending educational materials and media such as books, sound recordings, and DVDs.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Media Mail canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T126191 — 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: Media Mail Context triple: [United States Postal Service, offersService, Media Mail]
-
A.
SMTP
SMTP (Simple Mail Transfer Protocol) is a standard communication protocol used for sending and routing email messages across IP networks.
-
B.
Gmail
Gmail is Google's widely used web-based email service known for its large storage capacity, powerful search, and integration with other Google products.
-
C.
PM
PM is the standard abbreviation for *Principia Mathematica*, the landmark three-volume work on the foundations of mathematics and logic by Alfred North Whitehead and Bertrand Russell.
-
D.
POP3
POP3 (Post Office Protocol version 3) is a standard email protocol used by clients to retrieve messages from a remote mail server over a TCP/IP network, typically downloading them for local storage.
-
E.
SIM
SIM is the commonly used abbreviation for the Science and Industry Museum in Manchester, a major UK museum dedicated to the history and impact of science, technology, and industry.
- 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: Media Mail Target entity description: Media Mail is a discounted U.S. Postal Service shipping option specifically for sending educational materials and media such as books, sound recordings, and DVDs.
-
A.
SMTP
SMTP (Simple Mail Transfer Protocol) is a standard communication protocol used for sending and routing email messages across IP networks.
-
B.
Gmail
Gmail is Google's widely used web-based email service known for its large storage capacity, powerful search, and integration with other Google products.
-
C.
PM
PM is the standard abbreviation for *Principia Mathematica*, the landmark three-volume work on the foundations of mathematics and logic by Alfred North Whitehead and Bertrand Russell.
-
D.
POP3
POP3 (Post Office Protocol version 3) is a standard email protocol used by clients to retrieve messages from a remote mail server over a TCP/IP network, typically downloading them for local storage.
-
E.
SIM
SIM is the commonly used abbreviation for the Science and Industry Museum in Manchester, a major UK museum dedicated to the history and impact of science, technology, and industry.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
U.S. Postal Service mail class
ⓘ
domestic shipping service ⓘ |
| alsoKnownAs | Book Rate ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| deliveryArea |
domestic only
ⓘ
not available for international shipments ⓘ |
| deliverySpeed |
economy
ⓘ
slower than Priority Mail ⓘ |
| eligibleContents |
books
ⓘ
computer-readable media containing prerecorded information ⓘ educational reference charts without advertising ⓘ manuscripts ⓘ play scripts ⓘ printed music ⓘ recorded video media ⓘ sound recordings ⓘ |
| extraServices |
Certified Mail available
ⓘ
Return Receipt available ⓘ Signature Confirmation available ⓘ |
| hasAdvantage | cost-effective for heavy books ⓘ |
| hasDisadvantage | longer transit time ⓘ |
| ineligibleContents |
advertising material
ⓘ
clothing ⓘ electronics without qualifying media ⓘ personal correspondence ⓘ toys ⓘ |
| inspectionAuthority | USPS may open and inspect Media Mail packages ⓘ |
| inspectionPolicy | subject to postal inspection ⓘ |
| insuranceAvailability | optional insurance ⓘ |
| introducedBy | United States Postal Service ⓘ |
| operatedBy | United States Postal Service ⓘ |
| packagingRequirement |
must be securely packaged
ⓘ
must only contain eligible media items ⓘ |
| pricingCharacteristic |
lower cost than First-Class Package Service for heavy items
ⓘ
lower cost than Priority Mail ⓘ |
| pricingModel | weight-based pricing ⓘ |
| primaryPurpose |
low-cost shipping for media
ⓘ
shipping educational materials ⓘ |
| regulatoryDocument | USPS Domestic Mail Manual ⓘ |
| restrictionsReason | to prevent misuse of discounted rates ⓘ |
| serviceType | ground shipping ⓘ |
| targetUsers |
libraries
ⓘ
online booksellers ⓘ publishers ⓘ students ⓘ teachers ⓘ |
| trackingAvailability | USPS Tracking included ⓘ |
| weightLimit | 70 pounds ⓘ |
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: Media Mail Description of subject: Media Mail is a discounted U.S. Postal Service shipping option specifically for sending educational materials and media such as books, sound recordings, and DVDs.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.