Triple
T3477973
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Qazvin |
E73419
|
entity |
| Predicate | connectedBy |
P37
|
FINISHED |
| Object |
Tehran–Tabriz railway
The Tehran–Tabriz railway is a major rail line in Iran that links the capital Tehran with the northwestern city of Tabriz, serving as a key corridor for passenger and freight transport across the country.
|
E361569
|
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: Tehran–Tabriz railway | Statement: [Qazvin, connectedBy, Tehran–Tabriz railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tehran–Tabriz railway Context triple: [Qazvin, connectedBy, Tehran–Tabriz railway]
-
A.
Trans-Iranian Railway
The Trans-Iranian Railway is a historic north–south rail line completed in the 1930s that links the Persian Gulf to the Caspian Sea, playing a crucial role in Iran’s transportation network and in Allied logistics during World War II.
-
B.
Tehran–Karaj corridor
The Tehran–Karaj corridor is a major urban and transportation axis linking Iran’s capital Tehran with the nearby city of Karaj, forming one of the country’s most densely populated and heavily traveled metropolitan regions.
-
C.
Trans-Caspian Railway
The Trans-Caspian Railway is a historic rail line in Central Asia that formed a key part of the Russian Empire’s and later the Soviet Union’s transportation network across the region.
-
D.
Tehran–Mashhad highway
The Tehran–Mashhad highway is a major Iranian roadway linking the capital Tehran with the northeastern city of Mashhad, serving as a key route for both domestic travel and religious pilgrimage.
-
E.
Transcaucasian Railway
The Transcaucasian Railway was a major railway network of the Russian Empire and later the Soviet Union that connected key cities and ports across the South Caucasus 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: Tehran–Tabriz railway Triple: [Qazvin, connectedBy, Tehran–Tabriz railway]
Generated description
The Tehran–Tabriz railway is a major rail line in Iran that links the capital Tehran with the northwestern city of Tabriz, serving as a key corridor for passenger and freight transport across the country.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Tehran–Tabriz railway Target entity description: The Tehran–Tabriz railway is a major rail line in Iran that links the capital Tehran with the northwestern city of Tabriz, serving as a key corridor for passenger and freight transport across the country.
-
A.
Trans-Iranian Railway
The Trans-Iranian Railway is a historic north–south rail line completed in the 1930s that links the Persian Gulf to the Caspian Sea, playing a crucial role in Iran’s transportation network and in Allied logistics during World War II.
-
B.
Tehran–Karaj corridor
The Tehran–Karaj corridor is a major urban and transportation axis linking Iran’s capital Tehran with the nearby city of Karaj, forming one of the country’s most densely populated and heavily traveled metropolitan regions.
-
C.
Trans-Caspian Railway
The Trans-Caspian Railway is a historic rail line in Central Asia that formed a key part of the Russian Empire’s and later the Soviet Union’s transportation network across the region.
-
D.
Tehran–Mashhad highway
The Tehran–Mashhad highway is a major Iranian roadway linking the capital Tehran with the northeastern city of Mashhad, serving as a key route for both domestic travel and religious pilgrimage.
-
E.
Transcaucasian Railway
The Transcaucasian Railway was a major railway network of the Russian Empire and later the Soviet Union that connected key cities and ports across the South Caucasus 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_69ad85b3c9b08190857cae74c7f36da9 |
completed | March 8, 2026, 2:20 p.m. |
| NER | Named-entity recognition | batch_69adbb5b7584819096eadd1c5268eab1 |
completed | March 8, 2026, 6:09 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b3681822488190a9876a21236f9aa3 |
completed | March 13, 2026, 1:27 a.m. |
| NEDg | Description generation | batch_69b368b4e504819094ca0adbdbe7bfd9 |
completed | March 13, 2026, 1:30 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b3693a8d6481909dadce4ac6109ff3 |
completed | March 13, 2026, 1:32 a.m. |
Created at: March 8, 2026, 3:17 p.m.