Triple
T6436889
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Sadat metro station |
E129919
|
entity |
| Predicate | operator |
P179
|
FINISHED |
| Object | Cairo Metro operating company |
E576652
|
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: Cairo Metro operating company | Statement: [Sadat metro station, operator, Cairo Metro operating company]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Cairo Metro operating company Context triple: [Sadat metro station, operator, Cairo Metro operating company]
-
A.
Egyptian Company for Metro Management and Operation
chosen
The Egyptian Company for Metro Management and Operation is the state-owned enterprise responsible for running and maintaining Cairo’s urban metro network.
-
B.
Cairo Metro system
The Cairo Metro system is Egypt’s primary rapid transit network serving Greater Cairo, known as the first full-fledged metro system in Africa and the Arab world.
-
C.
Cairo Metro Line 3
Cairo Metro Line 3 is a major east–west rapid transit line in Cairo’s metro system, linking key districts and serving as an important interchange route across the city.
-
D.
Urban Rail Transport S.A.
Urban Rail Transport S.A. is the public company responsible for operating and managing urban rail systems in Athens, Greece, including metro and tram services.
-
E.
Cairo Metro Line 2
Cairo Metro Line 2 is a major rapid transit line in Cairo’s metro system that runs roughly north–south through the city, connecting key districts and central hubs.
- 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_69c0084caac48190a7bc2ad8ba44536f |
completed | March 22, 2026, 3:18 p.m. |
| NER | Named-entity recognition | batch_69c069622eb881908b40fc8079d312d6 |
completed | March 22, 2026, 10:12 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c640f2915c8190aea3578dcd77dd5f |
completed | March 27, 2026, 8:33 a.m. |
Created at: March 22, 2026, 4:45 p.m.