United States quarter dollar coins
E81119
United States quarter dollar coins are 25-cent pieces issued by the U.S. Mint, widely used in everyday commerce and often produced in special commemorative series for collectors.
All labels observed (8)
How this entity was disambiguated
This entity first appeared as the object of triple T636823 — 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: United States quarter dollar coins Context triple: [San Francisco Mint, product, United States quarter dollar coins]
-
A.
United States dollar coins
United States dollar coins are U.S. legal-tender metal currency pieces with a face value of one dollar, issued in various designs and compositions over time for circulation, collectors, and commemorative purposes.
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B.
United States coins
United States coins are the official metallic currency of the U.S., issued in various denominations and designs by the U.S. Mint for everyday transactions and collecting.
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C.
Rose Quarter
Rose Quarter is a sports and entertainment district in Portland, Oregon, featuring major venues, restaurants, and event spaces along the east bank of the Willamette River.
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D.
Quarter Eagle (2.50-dollar gold coin)
The Quarter Eagle was a U.S. gold coin with a face value of $2.50, minted from the late 18th to early 20th century and notable as one of the smallest denomination gold coins in American circulation.
-
E.
Eagle (10-dollar gold coin)
The Eagle was a U.S. ten-dollar gold coin, first minted in the late 18th century, that became a principal high-denomination piece in American gold currency until its discontinuation in the 20th century.
- 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: United States quarter dollar coins Target entity description: United States quarter dollar coins are 25-cent pieces issued by the U.S. Mint, widely used in everyday commerce and often produced in special commemorative series for collectors.
-
A.
United States dollar coins
United States dollar coins are U.S. legal-tender metal currency pieces with a face value of one dollar, issued in various designs and compositions over time for circulation, collectors, and commemorative purposes.
-
B.
United States coins
United States coins are the official metallic currency of the U.S., issued in various denominations and designs by the U.S. Mint for everyday transactions and collecting.
-
C.
Rose Quarter
Rose Quarter is a sports and entertainment district in Portland, Oregon, featuring major venues, restaurants, and event spaces along the east bank of the Willamette River.
-
D.
Quarter Eagle (2.50-dollar gold coin)
The Quarter Eagle was a U.S. gold coin with a face value of $2.50, minted from the late 18th to early 20th century and notable as one of the smallest denomination gold coins in American circulation.
-
E.
Eagle (10-dollar gold coin)
The Eagle was a U.S. ten-dollar gold coin, first minted in the late 18th century, that became a principal high-denomination piece in American gold currency until its discontinuation in the 20th century.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
United States coin
ⓘ
circulating coin ⓘ |
| category | United States circulating coinage ⓘ |
| changedToClad | 1965 ⓘ |
| circulationStatus | actively circulating ⓘ |
| cladMaterial | cupronickel ⓘ |
| collectedBy |
casual collectors
ⓘ
numismatists ⓘ |
| composition | copper-nickel clad copper ⓘ |
| coreMaterial | copper ⓘ |
| country | United States of America ⓘ |
| currency |
US dollar
ⓘ
surface form:
United States dollar
|
| denomination | 25 cents ⓘ |
| faceValue | 0.25 USD ⓘ |
| hasEdge | reeded edge ⓘ |
| hasMintMarkLocation | obverse ⓘ |
| hasSeries |
United States quarter dollar coins
self-linksurface differs
ⓘ
surface form:
50 State Quarters
America the Beautiful Quarters ⓘ United States quarter dollar coins self-linksurface differs ⓘ
surface form:
American Women Quarters
United States quarter dollar coins self-linksurface differs ⓘ
surface form:
District of Columbia and U.S. Territories Quarters
United States quarter dollar coins self-linksurface differs ⓘ
surface form:
Washington quarter
|
| introduced | 1796 ⓘ |
| isCommemorativeMedium | yes ⓘ |
| issuer | United States Mint ⓘ |
| legalTender | yes ⓘ |
| legalTenderIn |
United States of America
ⓘ
surface form:
United States
|
| mintedBy |
Denver Mint
ⓘ
Philadelphia Mint ⓘ San Francisco Mint ⓘ West Point Mint ⓘ |
| obverseDesign | portrait of George Washington ⓘ |
| obverseDesigner | John Flanagan ⓘ |
| obverseDesignIntroduced | 1932 ⓘ |
| originalComposition | silver ⓘ |
| relativeValueToDollarBill | one quarter ⓘ |
| reverseDesign | varies by series ⓘ |
| shape | round ⓘ |
| silverContentEnded | 1964 ⓘ |
| standardDiameter | 24.26 mm ⓘ |
| standardMass | 5.67 g ⓘ |
| standardThickness | 1.75 mm ⓘ |
| subdivisionOf |
US dollar
ⓘ
surface form:
United States dollar
|
| symbol | ¢ ⓘ |
| typicalColor | silvery ⓘ |
| usedFor |
everyday commerce
ⓘ
laundry machines ⓘ parking meters ⓘ vending machines ⓘ |
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: United States quarter dollar coins Description of subject: United States quarter dollar coins are 25-cent pieces issued by the U.S. Mint, widely used in everyday commerce and often produced in special commemorative series for collectors.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Washington quarters
subject surface form:
The Minute Man
this entity surface form:
Massachusetts state quarter (1999)
this entity surface form:
Washington quarter
United States quarter dollar coins
→
hasSeries
→
United States quarter dollar coins
self-linksurface differs
ⓘ
subject surface form:
United States quarter dollar coin
this entity surface form:
Washington quarter
United States quarter dollar coins
→
hasSeries
→
United States quarter dollar coins
self-linksurface differs
ⓘ
subject surface form:
United States quarter dollar coin
this entity surface form:
50 State Quarters
United States quarter dollar coins
→
hasSeries
→
United States quarter dollar coins
self-linksurface differs
ⓘ
subject surface form:
United States quarter dollar coin
this entity surface form:
District of Columbia and U.S. Territories Quarters
United States quarter dollar coins
→
hasSeries
→
United States quarter dollar coins
self-linksurface differs
ⓘ
subject surface form:
United States quarter dollar coin
this entity surface form:
American Women Quarters
this entity surface form:
D.C. and U.S. Territories Quarters
this entity surface form:
Washington quarter
this entity surface form:
Washington quarter