Triple
T6242345
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Cairo Metro Line 2 |
E139634
|
entity |
| Predicate | operator |
P179
|
FINISHED |
| Object | National Authority for Tunnels |
E534944
|
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: National Authority for Tunnels | Statement: [Cairo Metro Line 2, operator, National Authority for Tunnels]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: National Authority for Tunnels Context triple: [Cairo Metro Line 2, operator, National Authority for Tunnels]
-
A.
Egyptian National Authority for Tunnels
chosen
The Egyptian National Authority for Tunnels is a government agency responsible for planning, constructing, and managing Egypt’s major tunnel and urban rail projects, including metro and rapid transit systems.
-
B.
Intergovernmental Commission for the Channel Tunnel
The Intergovernmental Commission for the Channel Tunnel is a binational UK–French body responsible for the regulation, safety oversight, and governance of the Channel Tunnel fixed link.
-
C.
Zimmerberg Base Tunnel
The Zimmerberg Base Tunnel is a major Swiss railway tunnel that provides a fast, low-gradient route for passenger and freight trains between Zurich and central Switzerland.
-
D.
Tenda road tunnel
The Tenda road tunnel is a major Alpine tunnel connecting France and Italy beneath the Col de Tende, facilitating cross-border road traffic through the Maritime Alps.
-
E.
General Directorate for National Roads and Motorways
The General Directorate for National Roads and Motorways is Poland’s central government agency responsible for managing, maintaining, and developing the country’s national road and motorway network.
- 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_69c008b1c5088190ae6de2555fc05ad8 |
completed | March 22, 2026, 3:20 p.m. |
| NER | Named-entity recognition | batch_69c0631933488190838b424ec0fc2155 |
completed | March 22, 2026, 9:46 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c20e0d62208190928bab473ca64417 |
completed | March 24, 2026, 4:07 a.m. |
Created at: March 22, 2026, 4:23 p.m.