Triple
T6204165
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Cairo Metro Line 1 |
E138707
|
entity |
| Predicate | operator |
P179
|
FINISHED |
| Object |
Egyptian Company for Metro Management and Operation
The Egyptian Company for Metro Management and Operation is the state-owned enterprise responsible for running and maintaining Cairo’s urban metro network.
|
E576652
|
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: Egyptian Company for Metro Management and Operation | Statement: [Cairo Metro Line 1, operator, Egyptian Company for Metro Management and Operation]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Egyptian Company for Metro Management and Operation Context triple: [Cairo Metro Line 1, operator, Egyptian Company for Metro Management and Operation]
-
A.
Ministry of Transport of Egypt
The Ministry of Transport of Egypt is the government body responsible for planning, regulating, and overseeing Egypt’s national transportation systems, including railways, roads, and maritime infrastructure.
-
B.
Cairo Airport Company
Cairo Airport Company is the operator and managing entity of Cairo International Airport, overseeing its airport services, facilities, and development within Egypt’s civil aviation sector.
-
C.
Egyptian National Authority for Tunnels
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.
-
D.
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.
-
E.
Saudi Railways Organization
The Saudi Railways Organization is a Saudi government entity responsible for developing, operating, and overseeing key railway infrastructure and services in the Kingdom.
- 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: Egyptian Company for Metro Management and Operation Triple: [Cairo Metro Line 1, operator, Egyptian Company for Metro Management and Operation]
Generated description
The Egyptian Company for Metro Management and Operation is the state-owned enterprise responsible for running and maintaining Cairo’s urban metro network.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Egyptian Company for Metro Management and Operation Target entity description: The Egyptian Company for Metro Management and Operation is the state-owned enterprise responsible for running and maintaining Cairo’s urban metro network.
-
A.
Ministry of Transport of Egypt
The Ministry of Transport of Egypt is the government body responsible for planning, regulating, and overseeing Egypt’s national transportation systems, including railways, roads, and maritime infrastructure.
-
B.
Cairo Airport Company
Cairo Airport Company is the operator and managing entity of Cairo International Airport, overseeing its airport services, facilities, and development within Egypt’s civil aviation sector.
-
C.
Egyptian National Authority for Tunnels
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.
-
D.
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.
-
E.
Saudi Railways Organization
The Saudi Railways Organization is a Saudi government entity responsible for developing, operating, and overseeing key railway infrastructure and services in the Kingdom.
- 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_69c008acbea48190991c6b834bb45d65 |
completed | March 22, 2026, 3:20 p.m. |
| NER | Named-entity recognition | batch_69c0626c23f481909d2b5b0a75c2ffff |
completed | March 22, 2026, 9:43 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c16f412d848190a8e78ad7822aa399 |
completed | March 23, 2026, 4:50 p.m. |
| NEDg | Description generation | batch_69c1e3029cbc8190bed9449ec60412c0 |
completed | March 24, 2026, 1:04 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c1e42a4c848190bc3a9273d5a6e211 |
completed | March 24, 2026, 1:08 a.m. |
Created at: March 22, 2026, 4:20 p.m.