Northern Line of the State Railway of Thailand
E940400
The Northern Line of the State Railway of Thailand is a major rail route running from Bangkok through central Thailand to the northern region, serving key cities such as Ayutthaya, Lopburi, Phitsanulok, and Chiang Mai.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Northern Line (State Railway of Thailand) | 2 |
| Northern Line (Thailand) | 1 |
| Northern Line of the State Railway of Thailand canonical | 1 |
| State Railway of Thailand Northern Line | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11675560 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Northern Line of the State Railway of Thailand Context triple: [Lopburi, railwayConnection, Northern Line of the State Railway of Thailand]
-
A.
Southern Line railway of Thailand
The Southern Line railway of Thailand is a major rail corridor that runs from Bangkok down the Malay Peninsula, connecting numerous provinces and towns in southern Thailand.
-
B.
Northeastern railway line of Thailand
The Northeastern railway line of Thailand is a major rail corridor connecting Bangkok with key cities in the Isan region, serving as an important route for both passenger and freight transport.
-
C.
Nong Khai–Thanaleng railway
The Nong Khai–Thanaleng railway is a short international rail link connecting northeastern Thailand with Laos, serving as a key cross-border transport route between the two countries.
-
D.
Silom Line
The Silom Line is one of Bangkok’s main BTS Skytrain routes, running through key commercial and business districts including Silom and Sathorn.
-
E.
Bangkok rail transit network
The Bangkok rail transit network is an integrated urban rail system in Bangkok, Thailand, comprising multiple rapid transit, commuter, and airport rail lines that connect key districts and surrounding areas.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Northern Line of the State Railway of Thailand Target entity description: The Northern Line of the State Railway of Thailand is a major rail route running from Bangkok through central Thailand to the northern region, serving key cities such as Ayutthaya, Lopburi, Phitsanulok, and Chiang Mai.
-
A.
Southern Line railway of Thailand
The Southern Line railway of Thailand is a major rail corridor that runs from Bangkok down the Malay Peninsula, connecting numerous provinces and towns in southern Thailand.
-
B.
Northeastern railway line of Thailand
The Northeastern railway line of Thailand is a major rail corridor connecting Bangkok with key cities in the Isan region, serving as an important route for both passenger and freight transport.
-
C.
Nong Khai–Thanaleng railway
The Nong Khai–Thanaleng railway is a short international rail link connecting northeastern Thailand with Laos, serving as a key cross-border transport route between the two countries.
-
D.
Silom Line
The Silom Line is one of Bangkok’s main BTS Skytrain routes, running through key commercial and business districts including Silom and Sathorn.
-
E.
Bangkok rail transit network
The Bangkok rail transit network is an integrated urban rail system in Bangkok, Thailand, comprising multiple rapid transit, commuter, and airport rail lines that connect key districts and surrounding areas.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
inter-city rail line
ⓘ
railway line ⓘ |
| connectsRegion |
Bangkok Metropolitan Region
NERFINISHED
ⓘ
Lower Northern Region of Thailand NERFINISHED ⓘ Upper Northern Region of Thailand NERFINISHED ⓘ |
| country | Thailand ⓘ |
| electrification | non-electrified ⓘ |
| gauge | 1,000 mm metre gauge ⓘ |
| networkDirection | northbound from Bangkok ⓘ |
| notableIntermediateCity |
Ayutthaya
NERFINISHED
ⓘ
Den Chai NERFINISHED ⓘ Lopburi NERFINISHED ⓘ Nakhon Sawan NERFINISHED ⓘ Phitsanulok NERFINISHED ⓘ |
| operator | State Railway of Thailand NERFINISHED ⓘ |
| partOfNetwork | State Railway of Thailand network ⓘ |
| primaryFunction | passenger transport ⓘ |
| railSystem | Thai national rail network ⓘ |
| regionServed |
Central Thailand
NERFINISHED
ⓘ
Northern Thailand NERFINISHED ⓘ |
| secondaryFunction | freight transport ⓘ |
| servesCity |
Ayutthaya
NERFINISHED
ⓘ
Bangkok NERFINISHED ⓘ Chiang Mai NERFINISHED ⓘ Lopburi NERFINISHED ⓘ Phitsanulok NERFINISHED ⓘ |
| startingStation | Bangkok railway station NERFINISHED ⓘ |
| terminus |
Bangkok
NERFINISHED
ⓘ
Chiang Mai NERFINISHED ⓘ |
| trackType | mixed single and double track ⓘ |
| usesTraction | diesel ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Northern Line of the State Railway of Thailand Description of subject: The Northern Line of the State Railway of Thailand is a major rail route running from Bangkok through central Thailand to the northern region, serving key cities such as Ayutthaya, Lopburi, Phitsanulok, and Chiang Mai.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Northern Line (Thailand)
this entity surface form:
Northern Line (State Railway of Thailand)
this entity surface form:
Northern Line (State Railway of Thailand)
this entity surface form:
State Railway of Thailand Northern Line