Triple
T8127477
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tehran Urban and Suburban Railway and Bus Company |
E189768
|
entity |
| Predicate | owner |
P347
|
FINISHED |
| Object | Tehran Municipality |
E192416
|
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: Tehran Municipality | Statement: [Tehran Urban and Suburban Railway and Bus Company, owner, Tehran Municipality]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tehran Municipality Context triple: [Tehran Urban and Suburban Railway and Bus Company, owner, Tehran Municipality]
-
A.
Tehran Municipality
chosen
Tehran Municipality is the local government authority responsible for administering and managing the city of Tehran, Iran’s capital.
-
B.
Shahr-e Rey
Shahr-e Rey is an ancient city now absorbed into the metropolitan area of Tehran, Iran, known for its long history as a major political and cultural center in the region.
-
C.
Tehran County
Tehran County is an administrative division in north-central Iran that encompasses much of the metropolitan area of Tehran, the nation’s capital and largest city.
-
D.
Tehran
Tehran is the capital and largest city of Iran, serving as the country's political, economic, and cultural center.
-
E.
Greater Tehran
Greater Tehran is the expansive metropolitan region encompassing Iran’s capital city and its surrounding urban and suburban areas, serving as the country’s primary political, economic, and cultural hub.
- 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_69ca82bb74848190afb1f18640632c10 |
completed | March 30, 2026, 2:03 p.m. |
| NER | Named-entity recognition | batch_69cb438ff4e08190a9af0f3e6401c9b2 |
completed | March 31, 2026, 3:46 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cd3457196081909f739af8c17b4d4c |
completed | April 1, 2026, 3:05 p.m. |
Created at: March 30, 2026, 5:34 p.m.