Triple
T9389509
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Isthmus of Tehuantepec |
E225988
|
entity |
| Predicate | crossedBy |
P416
|
FINISHED |
| Object |
Tehuantepec Railway
The Tehuantepec Railway is a rail line in southern Mexico that provides a key trans-isthmian transportation route linking the Gulf of Mexico with the Pacific Ocean.
|
E795749
|
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: Tehuantepec Railway | Statement: [Isthmus of Tehuantepec, crossedBy, Tehuantepec Railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tehuantepec Railway Context triple: [Isthmus of Tehuantepec, crossedBy, Tehuantepec Railway]
-
A.
Ferrocarril Chihuahua al Pacífico
Ferrocarril Chihuahua al Pacífico is a scenic Mexican railway line, commonly known as "El Chepe," that traverses the Sierra Madre Occidental and the Copper Canyon region.
-
B.
Texas Mexican Railway
Texas Mexican Railway is a regional railroad in Texas that historically provided freight and cross-border rail services between the United States and Mexico and later became part of the Kansas City Southern rail network.
-
C.
Chepe railway
The Chepe railway is a scenic passenger train route in northern Mexico that traverses the dramatic landscapes and deep gorges of the Copper Canyon.
-
D.
South Central Pacific and Mexican Railway
The South Central Pacific and Mexican Railway was a 19th-century railroad enterprise involved in developing rail connections between the southwestern United States and Mexico.
-
E.
Mexican railroads
Mexican railroads comprise the national railway network of Mexico, historically vital for freight and passenger transport and now focused primarily on cargo services across the country and into the United States.
- 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: Tehuantepec Railway Triple: [Isthmus of Tehuantepec, crossedBy, Tehuantepec Railway]
Generated description
The Tehuantepec Railway is a rail line in southern Mexico that provides a key trans-isthmian transportation route linking the Gulf of Mexico with the Pacific Ocean.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Tehuantepec Railway Target entity description: The Tehuantepec Railway is a rail line in southern Mexico that provides a key trans-isthmian transportation route linking the Gulf of Mexico with the Pacific Ocean.
-
A.
Ferrocarril Chihuahua al Pacífico
Ferrocarril Chihuahua al Pacífico is a scenic Mexican railway line, commonly known as "El Chepe," that traverses the Sierra Madre Occidental and the Copper Canyon region.
-
B.
Texas Mexican Railway
Texas Mexican Railway is a regional railroad in Texas that historically provided freight and cross-border rail services between the United States and Mexico and later became part of the Kansas City Southern rail network.
-
C.
Chepe railway
The Chepe railway is a scenic passenger train route in northern Mexico that traverses the dramatic landscapes and deep gorges of the Copper Canyon.
-
D.
South Central Pacific and Mexican Railway
The South Central Pacific and Mexican Railway was a 19th-century railroad enterprise involved in developing rail connections between the southwestern United States and Mexico.
-
E.
Mexican railroads
Mexican railroads comprise the national railway network of Mexico, historically vital for freight and passenger transport and now focused primarily on cargo services across the country and into the United States.
- 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_69ca842f7e3481908bf5bcf52e032dbd |
completed | March 30, 2026, 2:09 p.m. |
| NER | Named-entity recognition | batch_69cd50d83c188190925c389dff1341b0 |
completed | April 1, 2026, 5:07 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d100f86bac8190a26ab156f24455bb |
completed | April 4, 2026, 12:15 p.m. |
| NEDg | Description generation | batch_69d10156670c8190b61ef6231c2e78d2 |
completed | April 4, 2026, 12:17 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69d10235f46c8190ba8eeb9382649f62 |
completed | April 4, 2026, 12:21 p.m. |
Created at: March 30, 2026, 7:45 p.m.