Triple
T8344057
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Line 4 (Tehran Metro) |
E195990
|
entity |
| Predicate | serves |
P98
|
FINISHED |
| Object |
central Tehran
Central Tehran is the densely populated, historic and administrative heart of Iran’s capital city, encompassing major government institutions, commercial districts, and cultural landmarks.
|
E728618
|
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: central Tehran | Statement: [Line 4 (Tehran Metro), serves, central Tehran]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: central Tehran Context triple: [Line 4 (Tehran Metro), serves, central Tehran]
-
A.
western Tehran
Western Tehran is a largely urbanized area of Iran’s capital city characterized by residential neighborhoods, commercial zones, and key transport hubs such as Mehrabad and major highways.
-
B.
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.
-
C.
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.
-
D.
Teheran-ro
Teheran-ro is a major business and technology corridor in Seoul, South Korea, known for its concentration of corporate headquarters, startups, and high-rise office buildings.
-
E.
Tehran
Tehran is the capital and largest city of Iran, serving as the country's political, economic, and cultural center.
- 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: central Tehran Triple: [Line 4 (Tehran Metro), serves, central Tehran]
Generated description
Central Tehran is the densely populated, historic and administrative heart of Iran’s capital city, encompassing major government institutions, commercial districts, and cultural landmarks.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: central Tehran Target entity description: Central Tehran is the densely populated, historic and administrative heart of Iran’s capital city, encompassing major government institutions, commercial districts, and cultural landmarks.
-
A.
western Tehran
Western Tehran is a largely urbanized area of Iran’s capital city characterized by residential neighborhoods, commercial zones, and key transport hubs such as Mehrabad and major highways.
-
B.
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.
-
C.
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.
-
D.
Teheran-ro
Teheran-ro is a major business and technology corridor in Seoul, South Korea, known for its concentration of corporate headquarters, startups, and high-rise office buildings.
-
E.
Tehran
Tehran is the capital and largest city of Iran, serving as the country's political, economic, and cultural center.
- 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_69ca82edd63c8190b876b8465464c5fa |
completed | March 30, 2026, 2:04 p.m. |
| NER | Named-entity recognition | batch_69cb7fed6b588190ba5593859c8effc2 |
completed | March 31, 2026, 8:03 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cdc733f7848190ab60098cb178dbfc |
completed | April 2, 2026, 1:32 a.m. |
| NEDg | Description generation | batch_69cdcc8596888190867bb0f298b6fac1 |
completed | April 2, 2026, 1:55 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69cdd14de9408190a5522fbdbef4d748 |
completed | April 2, 2026, 2:15 a.m. |
Created at: March 30, 2026, 5:58 p.m.