Triple
T9495642
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Helwan railway station |
E228996
|
entity |
| Predicate | connectedTo |
P37
|
FINISHED |
| Object |
Cairo rail network
The Cairo rail network is the metropolitan railway system serving Greater Cairo, linking the city’s districts and suburbs with regional and national rail lines.
|
E802862
|
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: Cairo rail network | Statement: [Helwan railway station, connectedTo, Cairo rail network]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Cairo rail network Context triple: [Helwan railway station, connectedTo, Cairo rail network]
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
Cairo Metro Line 1
Cairo Metro Line 1 is the first and one of the main rapid transit lines in Cairo’s metro system, connecting key districts across the city and serving central areas such as downtown near Tahrir Square.
-
E.
Abu Qir suburban line
The Abu Qir suburban line is a commuter rail service in Alexandria, Egypt, providing frequent local train connections between central Alexandria and its northeastern suburbs along the Mediterranean coast.
- 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: Cairo rail network Triple: [Helwan railway station, connectedTo, Cairo rail network]
Generated description
The Cairo rail network is the metropolitan railway system serving Greater Cairo, linking the city’s districts and suburbs with regional and national rail lines.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Cairo rail network Target entity description: The Cairo rail network is the metropolitan railway system serving Greater Cairo, linking the city’s districts and suburbs with regional and national rail lines.
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
Cairo Metro Line 1
Cairo Metro Line 1 is the first and one of the main rapid transit lines in Cairo’s metro system, connecting key districts across the city and serving central areas such as downtown near Tahrir Square.
-
E.
Abu Qir suburban line
The Abu Qir suburban line is a commuter rail service in Alexandria, Egypt, providing frequent local train connections between central Alexandria and its northeastern suburbs along the Mediterranean coast.
- 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_69ca84753660819098e8d416e89e26ae |
completed | March 30, 2026, 2:11 p.m. |
| NER | Named-entity recognition | batch_69cd95eb87b081908fc7255598cd9a24 |
completed | April 1, 2026, 10:02 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d12d34967881909980be6f1be80885 |
completed | April 4, 2026, 3:24 p.m. |
| NEDg | Description generation | batch_69d13113474881909201282ce1385073 |
completed | April 4, 2026, 3:41 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69d131ade0588190bdf3cfdbbdd6df8e |
completed | April 4, 2026, 3:43 p.m. |
Created at: March 30, 2026, 7:56 p.m.