John McShain
E58988
John McShain was an American building contractor known for constructing major U.S. landmarks, including the Pentagon and significant parts of Washington, D.C.'s federal architecture.
All labels observed (1)
| Label | Occurrences |
|---|---|
| John McShain canonical | 8 |
How this entity was disambiguated
This entity first appeared as the object of triple T88186 — 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: John McShain Context triple: [Pentagon, engineer, John McShain]
-
A.
Rob McKenna
Rob McKenna is an American attorney and politician best known for serving as the Attorney General of Washington State.
-
B.
Andrew Heiskell
Andrew Heiskell was an American publishing executive and philanthropist best known as a longtime leader of Time Inc. and a prominent figure in New York’s cultural and civic life.
-
C.
John Gilroy
John Gilroy is a film editor known for his work on major Hollywood productions, including the science-fiction monster film "Pacific Rim."
-
D.
Charles Begole
Charles Begole was an American mountaineer best known as one of the first climbers to reach the summit of Mount Whitney in the 19th century.
-
E.
Douglas Kirk
Douglas Kirk is an individual notable enough to be recognized as a prominent bearer of the surname Kirk.
- 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: John McShain Target entity description: John McShain was an American building contractor known for constructing major U.S. landmarks, including the Pentagon and significant parts of Washington, D.C.'s federal architecture.
-
A.
Rob McKenna
Rob McKenna is an American attorney and politician best known for serving as the Attorney General of Washington State.
-
B.
Andrew Heiskell
Andrew Heiskell was an American publishing executive and philanthropist best known as a longtime leader of Time Inc. and a prominent figure in New York’s cultural and civic life.
-
C.
John Gilroy
John Gilroy is a film editor known for his work on major Hollywood productions, including the science-fiction monster film "Pacific Rim."
-
D.
Charles Begole
Charles Begole was an American mountaineer best known as one of the first climbers to reach the summit of Mount Whitney in the 19th century.
-
E.
Douglas Kirk
Douglas Kirk is an individual notable enough to be recognized as a prominent bearer of the surname Kirk.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
building contractor
ⓘ
businessperson ⓘ human ⓘ |
| basedIn |
Philadelphia, Pennsylvania, United States
ⓘ
linked to:
Philadelphia
Washington, D.C., United States ⓘ
linked to:
Washington, D.C.
|
| countryOfCitizenship | United States of America ⓘ |
| employer | John McShain, Inc. ⓘ |
| ethnicGroup | Irish American ⓘ |
| fieldOfWork |
civil engineering
ⓘ
construction ⓘ |
| hasHonor |
buildings named in his honor
ⓘ
recognition as a leading U.S. contractor of the 20th century ⓘ |
| hasInfluenceOn | architectural landscape of Washington, D.C. ⓘ |
| hasPartIn | development of mid-20th-century U.S. infrastructure ⓘ |
| hasRole | principal contractor on major federal projects ⓘ |
| industry |
construction industry
ⓘ
real estate industry ⓘ |
| knownAs | The Man Who Built Washington ⓘ |
| name | John McShain ⓘ |
| notableFor |
constructing major U.S. federal buildings
ⓘ
large-scale government construction contracts ⓘ role in shaping Washington, D.C. federal architecture ⓘ |
| notableWork |
construction of educational and institutional buildings
ⓘ
construction of federal buildings in Washington, D.C. ⓘ construction of government office buildings ⓘ construction of hospitals and public facilities ⓘ construction of military facilities during World War II ⓘ construction of the Jefferson Memorial ⓘ construction of the John F. Kennedy Center for the Performing Arts ⓘ construction of the Pentagon ⓘ
linked to:
Pentagon
construction of the Washington National Airport terminal ⓘ construction projects on the National Mall ⓘ participation in the construction of the Library of Congress annex ⓘ participation in the construction of the State Department building ⓘ participation in the construction of the Supreme Court building ⓘ renovation of the White House ⓘ |
| occupation |
building contractor
ⓘ
real estate developer ⓘ |
| placeOfBirth |
Philadelphia, Pennsylvania, United States
ⓘ
linked to:
Philadelphia
|
| placeOfDeath |
Philadelphia, Pennsylvania, United States
ⓘ
linked to:
Philadelphia
|
| religion | Roman Catholicism ⓘ |
| residence |
Philadelphia, Pennsylvania, United States
ⓘ
linked to:
Philadelphia
Washington, D.C., United States ⓘ
linked to:
Washington, D.C.
|
| sexOrGender | male ⓘ |
| spouse | Mary Horstmann McShain ⓘ |
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: John McShain Description of subject: John McShain was an American building contractor known for constructing major U.S. landmarks, including the Pentagon and significant parts of Washington, D.C.'s federal architecture.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.