Triple
T9324606
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Ladbroke Grove rail crash |
E224355
|
entity |
| Predicate | relatedTo |
P37
|
FINISHED |
| Object |
Southall rail crash
The Southall rail crash was a major 1997 high-speed train collision in West London that killed seven people, injured dozens, and raised serious concerns about railway safety and signal-passing procedures in the UK.
|
E790825
|
NE FINISHED |
How this triple was built (4 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Southall rail crash | Statement: [Ladbroke Grove rail crash, relatedTo, Southall rail crash]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Southall rail crash Context triple: [Ladbroke Grove rail crash, relatedTo, Southall rail crash]
-
A.
Hatfield rail crash
The Hatfield rail crash was a fatal 2000 train derailment in Hertfordshire, England, that exposed serious track maintenance failures and triggered major reforms in the UK rail industry.
-
B.
Ladbroke Grove rail crash
The Ladbroke Grove rail crash was a major 1999 train collision near Paddington Station in London that resulted in 31 deaths, over 500 injuries, and significant scrutiny of UK rail safety and signaling practices.
-
C.
Shipton-on-Cherwell train crash
The Shipton-on-Cherwell train crash was a major 1874 railway disaster in Oxfordshire, England, in which a derailment caused by a broken wheel led to numerous deaths and injuries and prompted significant improvements in railway safety.
-
D.
Piccadilly Incident
Piccadilly Incident is a 1946 British romantic drama film starring Michael Wilding and Anna Neagle, centered on a wartime love story complicated by loss and mistaken death.
-
E.
Soham rail disaster
The Soham rail disaster was a 1944 World War II incident in Cambridgeshire, England, in which a burning ammunition train was heroically brought to a halt before exploding, saving the town from catastrophic destruction.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Southall rail crash Triple: [Ladbroke Grove rail crash, relatedTo, Southall rail crash]
Generated description
The Southall rail crash was a major 1997 high-speed train collision in West London that killed seven people, injured dozens, and raised serious concerns about railway safety and signal-passing procedures in the UK.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Southall rail crash Target entity description: The Southall rail crash was a major 1997 high-speed train collision in West London that killed seven people, injured dozens, and raised serious concerns about railway safety and signal-passing procedures in the UK.
-
A.
Hatfield rail crash
The Hatfield rail crash was a fatal 2000 train derailment in Hertfordshire, England, that exposed serious track maintenance failures and triggered major reforms in the UK rail industry.
-
B.
Ladbroke Grove rail crash
The Ladbroke Grove rail crash was a major 1999 train collision near Paddington Station in London that resulted in 31 deaths, over 500 injuries, and significant scrutiny of UK rail safety and signaling practices.
-
C.
Shipton-on-Cherwell train crash
The Shipton-on-Cherwell train crash was a major 1874 railway disaster in Oxfordshire, England, in which a derailment caused by a broken wheel led to numerous deaths and injuries and prompted significant improvements in railway safety.
-
D.
Piccadilly Incident
Piccadilly Incident is a 1946 British romantic drama film starring Michael Wilding and Anna Neagle, centered on a wartime love story complicated by loss and mistaken death.
-
E.
Soham rail disaster
The Soham rail disaster was a 1944 World War II incident in Cambridgeshire, England, in which a burning ammunition train was heroically brought to a halt before exploding, saving the town from catastrophic destruction.
- F. None of above. chosen
Provenance (5 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69ca8426d48481909596360f7791c7dd |
completed | March 30, 2026, 2:09 p.m. |
| NER | Named-entity recognition | batch_69cd36f5c41c81908104c5b30e14827e |
completed | April 1, 2026, 3:17 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d0c7e13d108190bc3409cf5608d9ad |
completed | April 4, 2026, 8:12 a.m. |
| NEDg | Description generation | batch_69d0c8c715488190869d77411a14502b |
completed | April 4, 2026, 8:16 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69d0c9938ad8819094196104f7ac03bf |
completed | April 4, 2026, 8:19 a.m. |
Created at: March 30, 2026, 7:38 p.m.