Triple

T4003497
Position Surface form Disambiguated ID Type / Status
Subject Leiden Centraal E89468 entity
Predicate railwayLine P848 FINISHED
Object Woerden–Leiden railway
The Woerden–Leiden railway is a regional rail line in the Netherlands connecting the city of Leiden with Woerden and serving intermediate towns in South Holland and Utrecht.
 E407619 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: Woerden–Leiden railway | Statement: [Leiden Centraal, railwayLine, Woerden–Leiden railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Woerden–Leiden railway
Context triple: [Leiden Centraal, railwayLine, Woerden–Leiden railway]
  • A. Weesp–Leiden railway
    The Weesp–Leiden railway is a key rail line in the Netherlands connecting the Amsterdam area with Leiden and serving as an important corridor in the Randstad region’s passenger rail network.
  • B. Haarlem–Leiden railway
    The Haarlem–Leiden railway is a historic rail line in the Netherlands that connects the cities of Haarlem and Leiden and serves several intermediate towns in the province of North Holland.
  • C. Utrecht–Leiden railway
    The Utrecht–Leiden railway is a Dutch rail line connecting the cities of Utrecht and Leiden, serving as an important regional passenger route in the Randstad area.
  • D. Utrecht–Gouda railway
    The Utrecht–Gouda railway is a key rail line in the Netherlands connecting the major transport hub of Utrecht with the city of Gouda and forming part of the country’s core passenger and regional rail network.
  • E. Amsterdam–Haarlem–Rotterdam railway
    The Amsterdam–Haarlem–Rotterdam railway is one of the Netherlands’ oldest and most important mainline rail routes, connecting major cities in the Randstad region.
  • 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: Woerden–Leiden railway
Triple: [Leiden Centraal, railwayLine, Woerden–Leiden railway]
Generated description
The Woerden–Leiden railway is a regional rail line in the Netherlands connecting the city of Leiden with Woerden and serving intermediate towns in South Holland and Utrecht.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Woerden–Leiden railway
Target entity description: The Woerden–Leiden railway is a regional rail line in the Netherlands connecting the city of Leiden with Woerden and serving intermediate towns in South Holland and Utrecht.
  • A. Weesp–Leiden railway
    The Weesp–Leiden railway is a key rail line in the Netherlands connecting the Amsterdam area with Leiden and serving as an important corridor in the Randstad region’s passenger rail network.
  • B. Haarlem–Leiden railway
    The Haarlem–Leiden railway is a historic rail line in the Netherlands that connects the cities of Haarlem and Leiden and serves several intermediate towns in the province of North Holland.
  • C. Utrecht–Leiden railway
    The Utrecht–Leiden railway is a Dutch rail line connecting the cities of Utrecht and Leiden, serving as an important regional passenger route in the Randstad area.
  • D. Utrecht–Gouda railway
    The Utrecht–Gouda railway is a key rail line in the Netherlands connecting the major transport hub of Utrecht with the city of Gouda and forming part of the country’s core passenger and regional rail network.
  • E. Amsterdam–Haarlem–Rotterdam railway
    The Amsterdam–Haarlem–Rotterdam railway is one of the Netherlands’ oldest and most important mainline rail routes, connecting major cities in the Randstad region.
  • 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_69aed9585e788190bec2d39deba3750f completed March 9, 2026, 2:29 p.m.
NER Named-entity recognition batch_69aefa5de98c8190a95b21a75fffdef3 completed March 9, 2026, 4:50 p.m.
NED1 Entity disambiguation (via context triple) batch_69b5562455a0819097fb6a566f2d387a completed March 14, 2026, 12:35 p.m.
NEDg Description generation batch_69b556bd17f481909647a10398025f3e completed March 14, 2026, 12:38 p.m.
NED2 Entity disambiguation (via description) batch_69b55733159481908d5a427a57bef9a3 completed March 14, 2026, 12:40 p.m.
Created at: March 9, 2026, 3:34 p.m.