Triple
T7042188
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Haydarpaşa Railway Station |
E163538
|
entity |
| Predicate | servedAsTerminusFor |
P388
|
FINISHED |
| Object |
Baghdad Railway
The Baghdad Railway was a major early 20th-century rail project intended to link Berlin with the Persian Gulf via Anatolia and Mesopotamia, symbolizing German influence and imperial ambitions in the Ottoman Empire.
|
E639220
|
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: Baghdad Railway | Statement: [Haydarpaşa Railway Station, servedAsTerminusFor, Baghdad Railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Baghdad Railway Context triple: [Haydarpaşa Railway Station, servedAsTerminusFor, Baghdad Railway]
-
A.
Hejaz Railway
The Hejaz Railway was an early 20th-century Ottoman narrow-gauge railway built to connect Damascus with the holy cities of the Hejaz, notably facilitating Muslim pilgrimage to Medina.
-
B.
Istanbul–Ankara railway
The Istanbul–Ankara railway is a major rail corridor in Turkey that connects the country’s largest city, Istanbul, with its capital, Ankara, serving as a key route for both passenger and freight transport.
-
C.
Tehran–Tabriz railway
The Tehran–Tabriz railway is a major rail line in Iran that links the capital Tehran with the northwestern city of Tabriz, serving as a key corridor for passenger and freight transport across the country.
-
D.
Cairo–Port Said line
The Cairo–Port Said line is a major Egyptian railway route linking the capital Cairo with the Mediterranean port city of Port Said, serving as a key axis for passenger and freight transport in the Nile Delta.
-
E.
Trans-Iranian Railway
The Trans-Iranian Railway is a historic north–south rail line completed in the 1930s that links the Persian Gulf to the Caspian Sea, playing a crucial role in Iran’s transportation network and in Allied logistics during World War II.
- 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: Baghdad Railway Triple: [Haydarpaşa Railway Station, servedAsTerminusFor, Baghdad Railway]
Generated description
The Baghdad Railway was a major early 20th-century rail project intended to link Berlin with the Persian Gulf via Anatolia and Mesopotamia, symbolizing German influence and imperial ambitions in the Ottoman Empire.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Baghdad Railway Target entity description: The Baghdad Railway was a major early 20th-century rail project intended to link Berlin with the Persian Gulf via Anatolia and Mesopotamia, symbolizing German influence and imperial ambitions in the Ottoman Empire.
-
A.
Hejaz Railway
The Hejaz Railway was an early 20th-century Ottoman narrow-gauge railway built to connect Damascus with the holy cities of the Hejaz, notably facilitating Muslim pilgrimage to Medina.
-
B.
Istanbul–Ankara railway
The Istanbul–Ankara railway is a major rail corridor in Turkey that connects the country’s largest city, Istanbul, with its capital, Ankara, serving as a key route for both passenger and freight transport.
-
C.
Tehran–Tabriz railway
The Tehran–Tabriz railway is a major rail line in Iran that links the capital Tehran with the northwestern city of Tabriz, serving as a key corridor for passenger and freight transport across the country.
-
D.
Cairo–Port Said line
The Cairo–Port Said line is a major Egyptian railway route linking the capital Cairo with the Mediterranean port city of Port Said, serving as a key axis for passenger and freight transport in the Nile Delta.
-
E.
Trans-Iranian Railway
The Trans-Iranian Railway is a historic north–south rail line completed in the 1930s that links the Persian Gulf to the Caspian Sea, playing a crucial role in Iran’s transportation network and in Allied logistics during World War II.
- 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_69c6885e7c1c8190be32a8f79ab4e0cf |
completed | March 27, 2026, 1:38 p.m. |
| NER | Named-entity recognition | batch_69c6e23440e8819080963fe81cfa0695 |
completed | March 27, 2026, 8:01 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c7887141ac81909cb5e996a89e4ec5 |
completed | March 28, 2026, 7:51 a.m. |
| NEDg | Description generation | batch_69c78c46ec18819098a6d0b0e6e4ce8b |
completed | March 28, 2026, 8:07 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c78caca6dc8190bc03d285fbcd7910 |
completed | March 28, 2026, 8:09 a.m. |
Created at: March 27, 2026, 2:36 p.m.