Irvin Plant
E21774
Irvin Plant is a major steel production facility within U.S. Steel’s Mon Valley Works in Pennsylvania, known for processing and finishing steel products.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Irvin Plant canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T165048 — 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: Irvin Plant Context triple: [Mon Valley Works, hasPart, Irvin Plant]
-
A.
Don Maynard
Don Maynard was a Hall of Fame American football wide receiver best known as Joe Namath’s primary deep threat and a key offensive star for the New York Jets during the 1960s.
-
B.
Arthur Lee
Arthur Lee was an American diplomat and member of the prominent Lee family of Virginia who played a key role in securing French support for the United States during the Revolutionary War.
-
C.
Danny Darwin
Danny Darwin is a former Major League Baseball right-handed pitcher who played from the late 1970s through the 1990s for several teams, including the Texas Rangers and Houston Astros.
-
D.
Lonnie Lynn
Lonnie Lynn was an American jazz musician and poet best known as the father of rapper Common and for his spoken-word appearances on his son's albums.
-
E.
Arthur Brown Jr.
Arthur Brown Jr. was an American architect best known for designing prominent civic landmarks in San Francisco, including its City Hall and other Beaux-Arts style public buildings.
- 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: Irvin Plant Target entity description: Irvin Plant is a major steel production facility within U.S. Steel’s Mon Valley Works in Pennsylvania, known for processing and finishing steel products.
-
A.
Don Maynard
Don Maynard was a Hall of Fame American football wide receiver best known as Joe Namath’s primary deep threat and a key offensive star for the New York Jets during the 1960s.
-
B.
Arthur Lee
Arthur Lee was an American diplomat and member of the prominent Lee family of Virginia who played a key role in securing French support for the United States during the Revolutionary War.
-
C.
Danny Darwin
Danny Darwin is a former Major League Baseball right-handed pitcher who played from the late 1970s through the 1990s for several teams, including the Texas Rangers and Houston Astros.
-
D.
Lonnie Lynn
Lonnie Lynn was an American jazz musician and poet best known as the father of rapper Common and for his spoken-word appearances on his son's albums.
-
E.
Arthur Brown Jr.
Arthur Brown Jr. was an American architect best known for designing prominent civic landmarks in San Francisco, including its City Hall and other Beaux-Arts style public buildings.
- F. None of above. chosen
Statements (15)
| Predicate | Object |
|---|---|
| instanceOf |
industrial plant
ⓘ
steel production facility ⓘ |
| country | United States of America ⓘ |
| function |
steel finishing
ⓘ
steel processing ⓘ |
| industry | steel industry ⓘ |
| locatedIn | Pennsylvania ⓘ |
| locatedInAdministrativeArea |
Commonwealth of Pennsylvania
ⓘ
linked to:
Pennsylvania
|
| locatedInCountry |
United States
ⓘ
linked to:
United States of America
|
| operatedBy |
U.S. Steel
ⓘ
linked to:
United States Steel Corporation
|
| ownedBy | United States Steel Corporation ⓘ |
| partOf |
Mon Valley Works
ⓘ
U.S. Steel Mon Valley Works operations ⓘ
linked to:
U.S. Steel Mon Valley Works
|
| product | steel products ⓘ |
| relativeImportance |
major facility within Mon Valley Works
ⓘ
linked to:
U.S. Steel Mon Valley Works
|
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: Irvin Plant Description of subject: Irvin Plant is a major steel production facility within U.S. Steel’s Mon Valley Works in Pennsylvania, known for processing and finishing steel products.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.