Triple
T1394731
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Amsterdam Metro line 51 |
E30638
|
entity |
| Predicate | servedCorridor |
P2566
|
FINISHED |
| Object |
Amstelveenlijn
Amstelveenlijn is a light rail corridor in the Amsterdam metropolitan area connecting the city with the suburb of Amstelveen.
|
E167444
|
NE FINISHED |
How this triple was built (5 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: Amstelveenlijn | Statement: [Amsterdam Metro line 51, servedCorridor, Amstelveenlijn]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Amstelveenlijn Context triple: [Amsterdam Metro line 51, servedCorridor, Amstelveenlijn]
-
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.
Eindhoven–Nijmegen–Arnhem corridor
The Eindhoven–Nijmegen–Arnhem corridor is a strategically important region in the southern and eastern Netherlands, encompassing a chain of cities and river crossings that has served as a key transportation and military axis.
-
C.
Amsterdam–Eindhoven railway corridor
The Amsterdam–Eindhoven railway corridor is a major Dutch rail axis connecting the capital Amsterdam with the southern city of Eindhoven, serving as a key route for both intercity and regional train services.
-
D.
Westphalweg
Westphalweg is a station on Berlin’s U6 U-Bahn line serving the Tempelhof-Schöneberg district in the southern part of the city.
-
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: Amstelveenlijn Triple: [Amsterdam Metro line 51, servedCorridor, Amstelveenlijn]
Generated description
Amstelveenlijn is a light rail corridor in the Amsterdam metropolitan area connecting the city with the suburb of Amstelveen.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Amstelveenlijn Target entity description: Amstelveenlijn is a light rail corridor in the Amsterdam metropolitan area connecting the city with the suburb of Amstelveen.
-
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.
Eindhoven–Nijmegen–Arnhem corridor
The Eindhoven–Nijmegen–Arnhem corridor is a strategically important region in the southern and eastern Netherlands, encompassing a chain of cities and river crossings that has served as a key transportation and military axis.
-
C.
Amsterdam–Eindhoven railway corridor
The Amsterdam–Eindhoven railway corridor is a major Dutch rail axis connecting the capital Amsterdam with the southern city of Eindhoven, serving as a key route for both intercity and regional train services.
-
D.
Westphalweg
Westphalweg is a station on Berlin’s U6 U-Bahn line serving the Tempelhof-Schöneberg district in the southern part of the city.
-
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
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: servedCorridor Context triple: [Amsterdam Metro line 51, servedCorridor, Amstelveenlijn]
-
A.
hasCorridor
Indicates that one entity includes, is connected by, or provides access through a corridor to another entity.
-
B.
hasServiceOnCorridor
chosen
Indicates that a service operates along, or is provided on, a specific corridor or route.
-
C.
numberOfCorridors
Indicates the total count of corridors associated with or contained within a given entity or structure.
-
D.
lengthOfCorridors
Indicates the measured extent or distance of corridors within a given space or structure.
-
E.
lineServed
Indicates that a particular transportation line (such as a bus, train, or metro line) provides service to or is operated at a given stop, station, or route segment.
- F. None of above.
Provenance (6 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_69a498fd4e408190bd73eca30ea9754c |
completed | March 1, 2026, 7:52 p.m. |
| NER | Named-entity recognition | batch_69a4c37e60388190a8efcb345be7a1b9 |
completed | March 1, 2026, 10:53 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ad0e657d3c8190962220e52e3e64c0 |
completed | March 8, 2026, 5:51 a.m. |
| NEDg | Description generation | batch_69ad0f2b046081908be111f16e2de0fb |
completed | March 8, 2026, 5:54 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ad0fe782548190a437386ee2f4c2d5 |
completed | March 8, 2026, 5:57 a.m. |
| PD | Predicate disambiguation | batch_69a4bf017f8081908572121560ec621f |
completed | March 1, 2026, 10:34 p.m. |
Created at: March 1, 2026, 7:59 p.m.