Pen 4
E281482
Pen 4 was one of the central standing enclosures at Hillsborough Stadium where the fatal overcrowding and crush occurred during the 1989 Hillsborough disaster.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pen 4 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2603453 — 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: Pen 4 Context triple: [Hillsborough disaster, occurredInPen, Pen 4]
-
A.
PEN
PEN is an international writers’ organization dedicated to promoting literature and defending freedom of expression worldwide.
-
B.
PEN
PEN is the Peruvian sol, the official national currency of Peru.
-
C.
Pen Dinas
Pen Dinas is an Iron Age hillfort and prominent landmark overlooking the coastal town of Aberystwyth in Ceredigion, Wales.
-
D.
Penge
Penge is a suburban district in southeast London known for its Victorian architecture and proximity to Crystal Palace.
-
E.
Garafía
Garafía is a rural municipality on the island of La Palma in Spain’s Canary Islands, known for its rugged coastline, traditional agriculture, and dark-sky stargazing conditions.
- 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: Pen 4 Target entity description: Pen 4 was one of the central standing enclosures at Hillsborough Stadium where the fatal overcrowding and crush occurred during the 1989 Hillsborough disaster.
-
A.
PEN
PEN is an international writers’ organization dedicated to promoting literature and defending freedom of expression worldwide.
-
B.
PEN
PEN is the Peruvian sol, the official national currency of Peru.
-
C.
Pen Dinas
Pen Dinas is an Iron Age hillfort and prominent landmark overlooking the coastal town of Aberystwyth in Ceredigion, Wales.
-
D.
Penge
Penge is a suburban district in southeast London known for its Victorian architecture and proximity to Crystal Palace.
-
E.
Garafía
Garafía is a rural municipality on the island of La Palma in Spain’s Canary Islands, known for its rugged coastline, traditional agriculture, and dark-sky stargazing conditions.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
football stadium terrace pen
ⓘ
standing enclosure ⓘ |
| adjacentTo |
Pen 3
ⓘ
other Leppings Lane terrace pens ⓘ |
| associatedEvent | Hillsborough disaster ⓘ |
| associatedWith |
Liverpool F.C. supporters present in 1989 disaster
ⓘ
linked to:
Hillsborough disaster
police crowd control decisions at Hillsborough in 1989 ⓘ |
| capacityType | standing-only ⓘ |
| contributedTo | fatalities in the Hillsborough disaster ⓘ |
| country | United Kingdom ⓘ |
| crowdManagementIssue |
failure to close tunnel when pen became full
ⓘ
lack of effective monitoring of crowd density on 15 April 1989 ⓘ |
| dateOfEvent | 15 April 1989 ⓘ |
| eventLocation | Hillsborough disaster ⓘ |
| hasAccessFrom | Leppings Lane turnstiles via central tunnel ⓘ |
| hasFeature |
crush barriers on terrace steps
ⓘ
limited entry via tunnel from Leppings Lane turnstiles ⓘ perimeter fencing at front ⓘ side fencing separating it from neighbouring pens ⓘ |
| hasPosition | central pen at Leppings Lane terrace ⓘ |
| impact | influenced reforms in crowd control and stadium design ⓘ |
| locatedIn |
England
ⓘ
Leppings Lane end of Hillsborough Stadium ⓘ
linked to:
Hillsborough Stadium
Sheffield ⓘ South Yorkshire ⓘ |
| notableFor |
being one of the central pens where fatal overcrowding occurred in the Hillsborough disaster
ⓘ
site of fatal crowd crush during FA Cup semi-final in 1989 ⓘ |
| operator |
Sheffield Wednesday F.C. (stadium operator at the time)
ⓘ
linked to:
Sheffield Wednesday F.C.
|
| partOf | Hillsborough Stadium ⓘ |
| relatedTo |
Taylor Report recommendations on all-seater stadiums
ⓘ
stadium safety regulations in the United Kingdom ⓘ |
| safetyIssue |
overcrowding on 15 April 1989
ⓘ
restricted egress due to perimeter fencing ⓘ |
| subjectOf |
Hillsborough disaster inquests
ⓘ
linked to:
Hillsborough disaster
independent safety investigations after 1989 ⓘ |
| timePeriod | in regular use before 1989 ⓘ |
| usedDuring | 1989 FA Cup semi-final between Liverpool and Nottingham Forest ⓘ |
| usedFor |
home and away fan standing during matches
ⓘ
segregated standing accommodation for football spectators ⓘ |
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: Pen 4 Description of subject: Pen 4 was one of the central standing enclosures at Hillsborough Stadium where the fatal overcrowding and crush occurred during the 1989 Hillsborough disaster.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.