Flight 93 National Memorial
E42481
Flight 93 National Memorial is a U.S. national park site in Pennsylvania that honors the passengers and crew of United Airlines Flight 93, who died thwarting hijackers during the September 11, 2001 terrorist attacks.
All labels observed (7)
How this entity was disambiguated
This entity first appeared as the object of triple T324868 — 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: Flight 93 National Memorial Context triple: [September 11 attacks, memorial, Flight 93 National Memorial]
-
A.
Air Force Memorial
The Air Force Memorial is a national monument in Arlington, Virginia, honoring the service and sacrifice of members of the United States Air Force through three soaring stainless-steel spires that evoke the flight of the Air Force Thunderbirds.
-
B.
Pentagon Memorial
The Pentagon Memorial is a national memorial in Arlington, Virginia, honoring the 184 victims who died in the September 11, 2001 attack on the Pentagon.
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C.
MacArthur Memorial
The MacArthur Memorial is a museum and final resting place in Norfolk, Virginia, dedicated to the life, military career, and legacy of U.S. General Douglas MacArthur.
-
D.
U.S. National Memorial
A U.S. National Memorial is a federally recognized site in the United States dedicated to commemorating significant historical events, individuals, or themes of national importance.
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E.
Women in Military Service for America Memorial
The Women in Military Service for America Memorial is a national monument honoring the contributions and sacrifices of women who have served in the United States Armed Forces throughout history.
- 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: Flight 93 National Memorial Target entity description: Flight 93 National Memorial is a U.S. national park site in Pennsylvania that honors the passengers and crew of United Airlines Flight 93, who died thwarting hijackers during the September 11, 2001 terrorist attacks.
-
A.
Air Force Memorial
The Air Force Memorial is a national monument in Arlington, Virginia, honoring the service and sacrifice of members of the United States Air Force through three soaring stainless-steel spires that evoke the flight of the Air Force Thunderbirds.
-
B.
Pentagon Memorial
The Pentagon Memorial is a national memorial in Arlington, Virginia, honoring the 184 victims who died in the September 11, 2001 attack on the Pentagon.
-
C.
MacArthur Memorial
The MacArthur Memorial is a museum and final resting place in Norfolk, Virginia, dedicated to the life, military career, and legacy of U.S. General Douglas MacArthur.
-
D.
U.S. National Memorial
A U.S. National Memorial is a federally recognized site in the United States dedicated to commemorating significant historical events, individuals, or themes of national importance.
-
E.
Women in Military Service for America Memorial
The Women in Military Service for America Memorial is a national monument honoring the contributions and sacrifices of women who have served in the United States Armed Forces throughout history.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
United States National Park Service site
ⓘ
national memorial ⓘ protected area ⓘ |
| administeredBy | National Park Service ⓘ |
| authorizedBy | United States Congress ⓘ |
| category |
National September 11 Memorial & Museum
ⓘ
surface form:
September 11 memorial
aviation disaster memorial ⓘ |
| commemorates |
United Airlines Flight 93
ⓘ
crew of United Airlines Flight 93 ⓘ passengers of United Airlines Flight 93 ⓘ |
| commemoratesEvent |
September 11 attacks
ⓘ
terrorist hijacking of United Airlines Flight 93 ⓘ |
| coordinates | approximately 40.058°N 78.907°W ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| dateOfEventCommemorated | September 11, 2001 ⓘ |
| designFocus | landscape-based memorial ⓘ |
| established | September 24, 2002 ⓘ |
| governingBody |
National Park Service
ⓘ
surface form:
United States National Park Service
|
| hasChimes | 40 wind chimes in Tower of Voices ⓘ |
| hasEducationalPrograms | yes ⓘ |
| hasExhibits | interpretive exhibits about Flight 93 and September 11, 2001 ⓘ |
| hasFeature |
Field of Honor
ⓘ
Memorial Plaza ⓘ Tower of Voices ⓘ Visitor Center Complex ⓘ Wall of Names ⓘ crash site of United Airlines Flight 93 ⓘ |
| hasFlagpole | yes ⓘ |
| hasOverlook | viewing area of crash site ⓘ |
| hasParking | yes ⓘ |
| locatedAtCrashSiteOf | United Airlines Flight 93 ⓘ |
| locatedIn | Somerset County, Pennsylvania ⓘ |
| locatedNear | Shanksville, Pennsylvania ⓘ |
| managedBy | Flight 93 National Memorial staff ⓘ |
| memorializes | 40 passengers and crew of Flight 93 ⓘ |
| memorialType |
landscape memorial
ⓘ
outdoor memorial ⓘ |
| nearestCity | Johnstown, Pennsylvania ⓘ |
| openToPublic | yes ⓘ |
| partOf |
United States National Park System
ⓘ
surface form:
National Park System
|
| purpose |
to honor the passengers and crew of Flight 93
ⓘ
to provide a place of remembrance and reflection ⓘ |
| region | Western Pennsylvania ⓘ |
| state | Pennsylvania ⓘ |
| subjectOf |
National Park Service educational materials
ⓘ
documentaries about September 11 ⓘ |
| symbolism |
Voices
ⓘ
surface form:
Tower of Voices represents the voices of the 40 passengers and crew
|
| theme | heroic actions of Flight 93 passengers and crew ⓘ |
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: Flight 93 National Memorial Description of subject: Flight 93 National Memorial is a U.S. national park site in Pennsylvania that honors the passengers and crew of United Airlines Flight 93, who died thwarting hijackers during the September 11, 2001 terrorist attacks.
Referenced by (28)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Flight 93 National Memorial, Pennsylvania, United States
this entity surface form:
Flight 93 crash site
this entity surface form:
Flight 93 National Memorial Wall of Names
this entity surface form:
United Airlines Flight 93 memorials
this entity surface form:
crash site of United Airlines Flight 93
this entity surface form:
Flight 93 crash site
this entity surface form:
Flight 93 National Memorial visitor experience