April Fools' Day
E41387
April Fools' Day is an annual informal holiday on April 1 marked by practical jokes, hoaxes, and playful pranks.
All labels observed (2)
| Label | Occurrences |
|---|---|
| April Fools' Day canonical | 3 |
| April Fools PEPs | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T320917 — 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: April Fools' Day Context triple: [April, hasHoliday, April Fools' Day]
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A.
Garter Day
Garter Day is the annual ceremonial celebration of the Order of the Garter, held at Windsor Castle and marked by a procession of knights and members of the British royal family.
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B.
King's Day
King's Day is a nationwide Dutch holiday celebrated each April with street festivals, orange-themed festivities, and open-air markets honoring the birthday of the reigning monarch.
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C.
St. Patrick's Day
St. Patrick's Day is an Irish cultural and religious holiday celebrated on March 17, widely known for parades, wearing green, and festivities honoring Ireland and its patron saint.
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D.
Easter Monday
Easter Monday is the Christian holiday observed on the day after Easter Sunday, often marked by religious services, public celebrations, and, in many countries, a public holiday.
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E.
Purim
Purim is a joyous Jewish holiday commemorating the salvation of the Jews in ancient Persia as recounted in the biblical Book of Esther, celebrated with feasting, costumes, charity, and the reading of the Megillah.
- 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: April Fools' Day Target entity description: April Fools' Day is an annual informal holiday on April 1 marked by practical jokes, hoaxes, and playful pranks.
-
A.
Garter Day
Garter Day is the annual ceremonial celebration of the Order of the Garter, held at Windsor Castle and marked by a procession of knights and members of the British royal family.
-
B.
King's Day
King's Day is a nationwide Dutch holiday celebrated each April with street festivals, orange-themed festivities, and open-air markets honoring the birthday of the reigning monarch.
-
C.
St. Patrick's Day
St. Patrick's Day is an Irish cultural and religious holiday celebrated on March 17, widely known for parades, wearing green, and festivities honoring Ireland and its patron saint.
-
D.
Easter Monday
Easter Monday is the Christian holiday observed on the day after Easter Sunday, often marked by religious services, public celebrations, and, in many countries, a public holiday.
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E.
Purim
Purim is a joyous Jewish holiday commemorating the salvation of the Jews in ancient Persia as recounted in the biblical Book of Esther, celebrated with feasting, costumes, charity, and the reading of the Megillah.
- F. None of above. chosen
Statements (112)
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: April Fools' Day Description of subject: April Fools' Day is an annual informal holiday on April 1 marked by practical jokes, hoaxes, and playful pranks.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: April Fools' Day