Triple
T3025947
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Colombo–Matara railway line |
E82574
|
entity |
| Predicate | terminus |
P388
|
FINISHED |
| Object | Colombo Fort railway station |
E128563
|
NE FINISHED |
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: Colombo Fort railway station | Statement: [Colombo–Matara railway line, terminus, Colombo Fort railway station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Colombo Fort railway station Context triple: [Colombo–Matara railway line, terminus, Colombo Fort railway station]
-
A.
Colombo Fort railway station
chosen
Colombo Fort railway station is the main railway hub in Colombo, Sri Lanka, serving as a central junction for both suburban and long-distance train services across the country.
-
B.
Colombo Fort
Colombo Fort is the historic commercial and administrative district of Colombo, Sri Lanka, known for its colonial-era architecture and role as the city’s financial hub.
-
C.
Colombo–Matara railway line
The Colombo–Matara railway line is a coastal rail route in southwestern Sri Lanka that connects the capital region with major southern cities, including Galle and Matara.
-
D.
Galle Face Green
Galle Face Green is a prominent oceanfront urban park and promenade in central Colombo, Sri Lanka, known for its open lawns, coastal views, and role as a popular public gathering place.
-
E.
Coimbatore Junction railway station
Coimbatore Junction railway station is a major railway hub in Tamil Nadu, India, serving as the primary rail gateway to the city of Coimbatore and an important junction on the Southern Railway network.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69ad8b1fb34081908c1b873e2b7273e1 |
completed | March 8, 2026, 2:43 p.m. |
| NER | Named-entity recognition | batch_69ad9abc78b48190a5283e7407a78fe7 |
completed | March 8, 2026, 3:50 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b1deb6dc8c8190a5714894b9ca24a1 |
completed | March 11, 2026, 9:29 p.m. |
Created at: March 8, 2026, 3 p.m.