Triple

T213148
Position Surface form Disambiguated ID Type / Status
Subject Egyptian National Railways network E4759 entity
Predicate mainCorridor P5520 FINISHED
Object Cairo–Alexandria line
The Cairo–Alexandria line is Egypt’s primary intercity railway route linking the capital Cairo with the Mediterranean port city of Alexandria and carrying a large share of the country’s passenger and freight traffic.
E27512 NE FINISHED

How this triple was built (5 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–Alexandria line | Statement: [Egyptian National Railways network, mainCorridor, Cairo–Alexandria line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Cairo–Alexandria line
Context triple: [Egyptian National Railways network, mainCorridor, Cairo–Alexandria line]
  • A. Cairo–Aswan railway line
    The Cairo–Aswan railway line is a major Egyptian rail corridor running along the Nile Valley, connecting the capital Cairo with the southern city of Aswan and serving key urban centers in between.
  • B. Egyptian National Railways network
    The Egyptian National Railways network is Egypt’s state-owned national railway system, providing passenger and freight rail services that connect major cities and regions across the country.
  • C. Assiut
    Assiut is a major city in Upper Egypt on the Nile River, serving as an important regional administrative, commercial, and transportation hub.
  • D. Aswan
    Aswan is a historic city in southern Egypt on the Nile River, known for its ancient temples, quarries, and the nearby Aswan High Dam.
  • E. Kasr Al Ainy
    Kasr Al Ainy is a historic medical campus and hospital complex in Cairo that serves as the main site of Cairo University's Faculty of Medicine.
  • 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–Alexandria line
Triple: [Egyptian National Railways network, mainCorridor, Cairo–Alexandria line]
Generated description
The Cairo–Alexandria line is Egypt’s primary intercity railway route linking the capital Cairo with the Mediterranean port city of Alexandria and carrying a large share of the country’s passenger and freight traffic.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Cairo–Alexandria line
Target entity description: The Cairo–Alexandria line is Egypt’s primary intercity railway route linking the capital Cairo with the Mediterranean port city of Alexandria and carrying a large share of the country’s passenger and freight traffic.
  • A. Cairo–Aswan railway line
    The Cairo–Aswan railway line is a major Egyptian rail corridor running along the Nile Valley, connecting the capital Cairo with the southern city of Aswan and serving key urban centers in between.
  • B. Egyptian National Railways network
    The Egyptian National Railways network is Egypt’s state-owned national railway system, providing passenger and freight rail services that connect major cities and regions across the country.
  • C. Assiut
    Assiut is a major city in Upper Egypt on the Nile River, serving as an important regional administrative, commercial, and transportation hub.
  • D. Aswan
    Aswan is a historic city in southern Egypt on the Nile River, known for its ancient temples, quarries, and the nearby Aswan High Dam.
  • E. Kasr Al Ainy
    Kasr Al Ainy is a historic medical campus and hospital complex in Cairo that serves as the main site of Cairo University's Faculty of Medicine.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: mainCorridor
Context triple: [Egyptian National Railways network, mainCorridor, Cairo–Alexandria line]
  • A. mainChamber
    Indicates that something is the primary or central chamber or room within a larger structure or system.
  • B. hasCorridor chosen
    Indicates that one entity includes, is connected by, or provides access through a corridor to another entity.
  • C. numberOfCorridors
    Indicates the total count of corridors associated with or contained within a given entity or structure.
  • D. hasMainHall
    Indicates that an entity possesses or includes a primary or central hall as a significant internal space.
  • E. hasEntranceOn
    Indicates that one entity’s entrance or access point is located on or faces a specified side, boundary, or feature of another entity.
  • F. None of above.

Provenance (6 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_69a2575cb1dc8190a01ad332426dc339 completed Feb. 28, 2026, 2:47 a.m.
NER Named-entity recognition batch_69a25c313d108190a65d3e939f961bef completed Feb. 28, 2026, 3:08 a.m.
NED1 Entity disambiguation (via context triple) batch_69a33e3f66888190a05ddcb0af4d3c5f completed Feb. 28, 2026, 7:13 p.m.
NEDg Description generation batch_69a33ee88af08190bfe81fba01856829 completed Feb. 28, 2026, 7:15 p.m.
NED2 Entity disambiguation (via description) batch_69a34295afa88190aae0d75a337967e3 completed Feb. 28, 2026, 7:31 p.m.
PD Predicate disambiguation batch_69a25b509400819093a6c1a1bac861e3 completed Feb. 28, 2026, 3:04 a.m.
Created at: Feb. 28, 2026, 2:52 a.m.