Triple
T17154217
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Massawa |
E416299
|
entity |
| Predicate | formerRailLink |
P20480
|
FINISHED |
| Object | Asmara–Massawa railway |
E1202689
|
NE FINISHED |
How this triple was built (3 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: Asmara–Massawa railway | Statement: [Massawa, formerRailLink, Asmara–Massawa railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Asmara–Massawa railway Context triple: [Massawa, formerRailLink, Asmara–Massawa railway]
-
A.
Asmara–Massawa railway
chosen
The Asmara–Massawa railway is a historic narrow-gauge line in Eritrea, renowned for its dramatic mountain route between the capital and the Red Sea coast and for being one of the few surviving steam-era railways in Africa.
-
B.
Ethiopian–Djibouti Railway
The Ethiopian–Djibouti Railway was a historic metre-gauge rail line linking landlocked Ethiopia to the port of Djibouti, serving as a vital trade and transport corridor in the Horn of Africa for much of the 20th century.
-
C.
Addis Ababa–Djibouti Railway
The Addis Ababa–Djibouti Railway is a modern electrified standard-gauge rail line linking Ethiopia’s capital Addis Ababa with the port city of Djibouti, serving as a key trade and transport corridor for landlocked Ethiopia.
-
D.
Asmara–Massawa road
The Asmara–Massawa road is a key highway in Eritrea that links the capital Asmara in the highlands with the Red Sea port city of Massawa, traversing dramatic mountainous terrain.
-
E.
Asmara–Adigrat road corridor
The Asmara–Adigrat road corridor is a key transboundary route linking Eritrea’s capital Asmara with the town of Adigrat in northern Ethiopia, serving as an important axis for regional transport and trade.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: formerRailLink Context triple: [Massawa, formerRailLink, Asmara–Massawa railway]
-
A.
formerRailroad
Indicates that an entity was previously a railroad but no longer functions as one.
-
B.
formerRailwayLine
chosen
Indicates that a railway line previously existed in the past but is no longer in operation or has been decommissioned.
-
C.
formerRailOperator
Indicates that an entity previously operated a rail service or railway system but no longer does so.
-
D.
relatedRailroad
Indicates that there is an association or connection between an entity and a specific railroad, such as ownership, operation, service, or historical linkage.
-
E.
laterRailwayCompany
Indicates that one railway company is the successor or later incarnation of another railway company.
- F. None of above.
Provenance (4 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_69d886d279c081909f8ff1f743ddeb69 |
completed | April 10, 2026, 5:12 a.m. |
| NER | Named-entity recognition | batch_69e3f4092c40819096359ff90af16c3e |
completed | April 18, 2026, 9:13 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a01415f3cd481908e96ca294cf3b247 |
completed | May 11, 2026, 2:39 a.m. |
| PD | Predicate disambiguation | batch_69e3830d2a90819092386717dc56f0e8 |
completed | April 18, 2026, 1:11 p.m. |
Created at: April 10, 2026, 5:37 a.m.