Triple
T8048376
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tehran–Karaj corridor |
E187611
|
entity |
| Predicate | hasMajorRail |
P24245
|
FINISHED |
| Object |
Tehran Metro Line 5
Tehran Metro Line 5 is a suburban commuter rail line of the Tehran Metro system that connects Tehran with the nearby city of Karaj and surrounding satellite towns.
|
E751536
|
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 Metro Line 5 | Statement: [Tehran–Karaj corridor, hasMajorRail, Tehran Metro Line 5]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tehran Metro Line 5 Context triple: [Tehran–Karaj corridor, hasMajorRail, Tehran Metro Line 5]
-
A.
Tehran Metro Line 6
Tehran Metro Line 6 is a major north–south and east–west rapid transit line in Tehran’s urban rail network, designed to improve connectivity across central and peripheral districts of Iran’s capital.
-
B.
Tehran Metro Line 3
Tehran Metro Line 3 is a major north–south rapid transit line in Tehran’s metro network, serving as one of the city’s key high-capacity urban rail corridors.
-
C.
Tehran Metro Line 4
Tehran Metro Line 4 is one of the main east–west rapid transit lines in Tehran’s metro network, serving key urban areas and providing access to major hubs including the route toward Mehrabad International Airport.
-
D.
Tehran Metro Line 2
Tehran Metro Line 2 is a major east–west rapid transit line in Tehran’s metro system, serving numerous central and western districts and providing key transfer connections with several other lines.
-
E.
Tehran Metro Line 9
Tehran Metro Line 9 is a planned rapid transit line intended to expand and improve the urban rail network in Iran’s capital, Tehran.
- 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 Metro Line 5 Triple: [Tehran–Karaj corridor, hasMajorRail, Tehran Metro Line 5]
Generated description
Tehran Metro Line 5 is a suburban commuter rail line of the Tehran Metro system that connects Tehran with the nearby city of Karaj and surrounding satellite towns.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Tehran Metro Line 5 Target entity description: Tehran Metro Line 5 is a suburban commuter rail line of the Tehran Metro system that connects Tehran with the nearby city of Karaj and surrounding satellite towns.
-
A.
Tehran Metro Line 6
Tehran Metro Line 6 is a major north–south and east–west rapid transit line in Tehran’s urban rail network, designed to improve connectivity across central and peripheral districts of Iran’s capital.
-
B.
Tehran Metro Line 3
Tehran Metro Line 3 is a major north–south rapid transit line in Tehran’s metro network, serving as one of the city’s key high-capacity urban rail corridors.
-
C.
Tehran Metro Line 4
Tehran Metro Line 4 is one of the main east–west rapid transit lines in Tehran’s metro network, serving key urban areas and providing access to major hubs including the route toward Mehrabad International Airport.
-
D.
Tehran Metro Line 2
Tehran Metro Line 2 is a major east–west rapid transit line in Tehran’s metro system, serving numerous central and western districts and providing key transfer connections with several other lines.
-
E.
Tehran Metro Line 9
Tehran Metro Line 9 is a planned rapid transit line intended to expand and improve the urban rail network in Iran’s capital, Tehran.
- 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_69ca82b15e948190a62fd7af5218426a |
completed | March 30, 2026, 2:03 p.m. |
| NER | Named-entity recognition | batch_69cb3f7711f48190af2002533c2e426a |
completed | March 31, 2026, 3:28 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cef298986c8190a253d5c61310a23a |
completed | April 2, 2026, 10:50 p.m. |
| NEDg | Description generation | batch_69cef4cbc0788190bf95aa8058a8d895 |
completed | April 2, 2026, 10:59 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69cef830e4e48190bf337a526cc82119 |
completed | April 2, 2026, 11:13 p.m. |
Created at: March 30, 2026, 5:24 p.m.