September 11 attacks
E6490
The September 11 attacks were a series of coordinated terrorist hijackings and suicide attacks carried out by al-Qaeda against targets in the United States in 2001, resulting in massive loss of life and global political and security repercussions.
All labels observed (9)
How this entity was disambiguated
This entity first appeared as the object of triple T88212 — 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: September 11 attacks Context triple: [Pentagon, damagedIn, September 11 attacks]
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A.
attack on Pearl Harbor
The attack on Pearl Harbor was the surprise Japanese military strike on the U.S. naval base in Hawaii on December 7, 1941, that led to the United States’ entry into World War II.
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B.
Burning of Washington
The Burning of Washington was a British attack during the War of 1812 in which invading forces captured and set fire to multiple U.S. government buildings in the capital, including the presidential mansion.
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C.
Global War on Terrorism
The Global War on Terrorism is a broad, U.S.-led international military and political campaign launched after the September 11, 2001 attacks to combat terrorist organizations and the states that support them.
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D.
9/11 Commission Report
The 9/11 Commission Report is the official, bipartisan account of the circumstances surrounding the September 11, 2001 terrorist attacks on the United States, including findings and recommendations for preventing future attacks.
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E.
Benghazi
Benghazi is a major port city in eastern Libya that has historically served as a key political, economic, and cultural center of the country.
- 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: September 11 attacks Target entity description: The September 11 attacks were a series of coordinated terrorist hijackings and suicide attacks carried out by al-Qaeda against targets in the United States in 2001, resulting in massive loss of life and global political and security repercussions.
-
A.
attack on Pearl Harbor
The attack on Pearl Harbor was the surprise Japanese military strike on the U.S. naval base in Hawaii on December 7, 1941, that led to the United States’ entry into World War II.
-
B.
Burning of Washington
The Burning of Washington was a British attack during the War of 1812 in which invading forces captured and set fire to multiple U.S. government buildings in the capital, including the presidential mansion.
-
C.
Global War on Terrorism
The Global War on Terrorism is a broad, U.S.-led international military and political campaign launched after the September 11, 2001 attacks to combat terrorist organizations and the states that support them.
-
D.
9/11 Commission Report
The 9/11 Commission Report is the official, bipartisan account of the circumstances surrounding the September 11, 2001 terrorist attacks on the United States, including findings and recommendations for preventing future attacks.
-
E.
Benghazi
Benghazi is a major port city in eastern Libya that has historically served as a key political, economic, and cultural center of the country.
- F. None of above. chosen
Statements (58)
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: September 11 attacks Description of subject: The September 11 attacks were a series of coordinated terrorist hijackings and suicide attacks carried out by al-Qaeda against targets in the United States in 2001, resulting in massive loss of life and global political and security repercussions.
Referenced by (201)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
National 9/11 Pentagon Memorial
subject surface form:
The Rising
this entity surface form:
September 11, 2001 terrorist attacks in the United States
subject surface form:
American Airlines Flight 77
subject surface form:
Khalid Sheikh Mohammed
subject surface form:
No Higher Honor: A Memoir of My Years in Washington
this entity surface form:
September 11, 2001 terrorist attacks