Triple
T17856011
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Fukuchiyama Line |
E445937
|
entity |
| Predicate | notableAccident |
P22
|
FINISHED |
| Object | Amagasaki derailment |
—
|
NE NERFINISHED |
How this triple was built (2 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: Amagasaki derailment | Statement: [Fukuchiyama Line, notableAccident, Amagasaki derailment]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Amagasaki derailment Context triple: [Fukuchiyama Line, notableAccident, Amagasaki derailment]
-
A.
Amagasaki derailment
chosen
The Amagasaki derailment was a deadly 2005 train accident in Hyōgo Prefecture, Japan, in which a commuter train left the tracks and crashed into an apartment building, prompting major scrutiny of railway safety practices.
-
B.
Sakuragichō train fire
The Sakuragichō train fire was a 1951 railway disaster in Yokohama, Japan, in which an overhead wire caused a blaze that killed more than 100 passengers and led to major safety reforms on Japanese trains.
-
C.
Sakurada Gate Incident
The Sakurada Gate Incident was an 1860 assassination of Japanese chief minister Ii Naosuke outside Edo Castle, a pivotal event that intensified political turmoil in the late Tokugawa shogunate.
-
D.
Akō incident
The Akō incident was an early 18th-century samurai vendetta in Japan, in which the forty-seven rōnin avenged their lord’s forced seppuku, later becoming a legendary example of loyalty and bushidō.
-
E.
Hibiya Incendiary Incident
The Hibiya Incendiary Incident was a 1905 anti-government riot in Tokyo sparked by public outrage over the terms of the Treaty of Portsmouth that ended the Russo-Japanese War.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69d8b9f26f18819089c9e43250bee6ae |
completed | April 10, 2026, 8:50 a.m. |
| NER | Named-entity recognition | batch_69e4978bd5e081909e192f6aada5235f |
completed | April 19, 2026, 8:51 a.m. |
Created at: April 10, 2026, 10:17 a.m.