Arosa line
E717664
The Arosa line is a scenic Swiss metre-gauge railway route in the canton of Graubünden, running steeply from Chur up to the mountain resort of Arosa.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Arosa line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7875723 — 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: Arosa line Context triple: [Rhaetian Railway, hasLine, Arosa line]
-
A.
Engadin line
The Engadin line is a scenic metre-gauge railway route in Switzerland’s canton of Graubünden that runs through the Engadin valley as part of the Rhaetian Railway network.
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B.
Albula Railway
The Albula Railway is a renowned Swiss mountain railway line celebrated for its spectacular alpine scenery, spiral tunnels, and status as a UNESCO World Heritage Site.
-
C.
Stubai Valley Railway
The Stubai Valley Railway is a narrow-gauge electric railway in Tyrol, Austria, connecting the city of Innsbruck with the Stubai Valley and serving both local commuters and tourists.
-
D.
Matterhorn Gotthard Bahn
Matterhorn Gotthard Bahn is a Swiss narrow-gauge railway company operating scenic mountain routes through the Alps, including connections to popular destinations like Zermatt and Andermatt.
-
E.
Landquart–Davos railway line
The Landquart–Davos railway line is a Swiss metre-gauge mountain railway operated by the Rhaetian Railway, linking the town of Landquart with the alpine resort of Davos through the canton of Graubünden.
- 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: Arosa line Target entity description: The Arosa line is a scenic Swiss metre-gauge railway route in the canton of Graubünden, running steeply from Chur up to the mountain resort of Arosa.
-
A.
Engadin line
The Engadin line is a scenic metre-gauge railway route in Switzerland’s canton of Graubünden that runs through the Engadin valley as part of the Rhaetian Railway network.
-
B.
Albula Railway
The Albula Railway is a renowned Swiss mountain railway line celebrated for its spectacular alpine scenery, spiral tunnels, and status as a UNESCO World Heritage Site.
-
C.
Stubai Valley Railway
The Stubai Valley Railway is a narrow-gauge electric railway in Tyrol, Austria, connecting the city of Innsbruck with the Stubai Valley and serving both local commuters and tourists.
-
D.
Matterhorn Gotthard Bahn
Matterhorn Gotthard Bahn is a Swiss narrow-gauge railway company operating scenic mountain routes through the Alps, including connections to popular destinations like Zermatt and Andermatt.
-
E.
Landquart–Davos railway line
The Landquart–Davos railway line is a Swiss metre-gauge mountain railway operated by the Rhaetian Railway, linking the town of Landquart with the alpine resort of Davos through the canton of Graubünden.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
metre-gauge railway
ⓘ
mountain railway ⓘ railway line ⓘ |
| connectsCity | Chur NERFINISHED ⓘ |
| connectsResort | Arosa NERFINISHED ⓘ |
| country | Switzerland ⓘ |
| electrification | 11 kV 16.7 Hz AC overhead ⓘ |
| endStation | Arosa NERFINISHED ⓘ |
| formerOwner | Chur–Arosa-Bahn NERFINISHED ⓘ |
| gauge | 1000 mm ⓘ |
| hasFeature |
scenic views
ⓘ
steep gradients ⓘ street-running section in Chur ⓘ |
| languageRegion | German-speaking Switzerland NERFINISHED ⓘ |
| lineLength | approximately 25 km ⓘ |
| locatedIn |
Alps
NERFINISHED
ⓘ
canton of Graubünden NERFINISHED ⓘ |
| openingDate | 1914 ⓘ |
| operator | Rhaetian Railway NERFINISHED ⓘ |
| owner | Rhaetian Railway NERFINISHED ⓘ |
| primaryFunction | passenger transport ⓘ |
| railwayNetwork | Rhaetian Railway network NERFINISHED ⓘ |
| regionServed | Plessur valley NERFINISHED ⓘ |
| serves |
local transport
ⓘ
tourism ⓘ |
| startStation | Chur NERFINISHED ⓘ |
| terminus |
Arosa
NERFINISHED
ⓘ
Chur NERFINISHED ⓘ |
| trackConfiguration | single track ⓘ |
| usesRollingStockType | electric multiple units ⓘ |
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: Arosa line Description of subject: The Arosa line is a scenic Swiss metre-gauge railway route in the canton of Graubünden, running steeply from Chur up to the mountain resort of Arosa.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.