Triple
T9051473
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Line 1 (Ho Chi Minh City Metro) |
E216891
|
entity |
| Predicate | operator |
P179
|
FINISHED |
| Object |
Management Authority for Urban Railways of Ho Chi Minh City
The Management Authority for Urban Railways of Ho Chi Minh City is the government agency responsible for planning, developing, and overseeing the operation of the city's urban rail and metro systems.
|
E775485
|
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: Management Authority for Urban Railways of Ho Chi Minh City | Statement: [Line 1 (Ho Chi Minh City Metro), operator, Management Authority for Urban Railways of Ho Chi Minh City]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Management Authority for Urban Railways of Ho Chi Minh City Context triple: [Line 1 (Ho Chi Minh City Metro), operator, Management Authority for Urban Railways of Ho Chi Minh City]
-
A.
North–South Railway of Vietnam
The North–South Railway of Vietnam is the country’s principal rail line, running the length of Vietnam and connecting major cities from Hanoi in the north to Ho Chi Minh City in the south.
-
B.
Hanoi Metro Line 2A Cát Linh–Hà Đông
Hanoi Metro Line 2A Cát Linh–Hà Đông is an elevated urban rail line in Hanoi and Vietnam’s first metro line, connecting central districts with the southwestern Hà Đông area.
-
C.
Ho Chi Minh City Metro (under construction)
The Ho Chi Minh City Metro is a developing rapid transit system intended to provide modern urban rail service and alleviate traffic congestion in Vietnam’s largest city.
-
D.
Ho Chi Minh City – Rach Gia
Ho Chi Minh City – Rach Gia is a domestic air route in southern Vietnam connecting the country’s largest metropolis with the coastal city of Rach Gia, a common gateway to nearby islands like Phu Quoc.
-
E.
Ho Chi Minh City–Da Nang
Ho Chi Minh City–Da Nang is a major domestic air route in Vietnam connecting the southern metropolis of Ho Chi Minh City with the central coastal city of Da Nang.
- 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: Management Authority for Urban Railways of Ho Chi Minh City Triple: [Line 1 (Ho Chi Minh City Metro), operator, Management Authority for Urban Railways of Ho Chi Minh City]
Generated description
The Management Authority for Urban Railways of Ho Chi Minh City is the government agency responsible for planning, developing, and overseeing the operation of the city's urban rail and metro systems.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Management Authority for Urban Railways of Ho Chi Minh City Target entity description: The Management Authority for Urban Railways of Ho Chi Minh City is the government agency responsible for planning, developing, and overseeing the operation of the city's urban rail and metro systems.
-
A.
North–South Railway of Vietnam
The North–South Railway of Vietnam is the country’s principal rail line, running the length of Vietnam and connecting major cities from Hanoi in the north to Ho Chi Minh City in the south.
-
B.
Hanoi Metro Line 2A Cát Linh–Hà Đông
Hanoi Metro Line 2A Cát Linh–Hà Đông is an elevated urban rail line in Hanoi and Vietnam’s first metro line, connecting central districts with the southwestern Hà Đông area.
-
C.
Ho Chi Minh City Metro (under construction)
The Ho Chi Minh City Metro is a developing rapid transit system intended to provide modern urban rail service and alleviate traffic congestion in Vietnam’s largest city.
-
D.
Ho Chi Minh City – Rach Gia
Ho Chi Minh City – Rach Gia is a domestic air route in southern Vietnam connecting the country’s largest metropolis with the coastal city of Rach Gia, a common gateway to nearby islands like Phu Quoc.
-
E.
Ho Chi Minh City–Da Nang
Ho Chi Minh City–Da Nang is a major domestic air route in Vietnam connecting the southern metropolis of Ho Chi Minh City with the central coastal city of Da Nang.
- 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_69ca83d362e88190ae44b4e4dc194209 |
completed | March 30, 2026, 2:08 p.m. |
| NER | Named-entity recognition | batch_69cc6b54423081908d9fd985109e336a |
completed | April 1, 2026, 12:48 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cfebc90bf88190bbcdab07ca93f569 |
completed | April 3, 2026, 4:33 p.m. |
| NEDg | Description generation | batch_69cfecf7fce08190a9b80044a2ae9745 |
completed | April 3, 2026, 4:38 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69cff0ea8c388190bd95233db9c69038 |
completed | April 3, 2026, 4:55 p.m. |
Created at: March 30, 2026, 7:10 p.m.