Rorschach–Heiden rack railway
E264263
The Rorschach–Heiden rack railway is a Swiss mountain railway line that climbs steeply from the lakeside town of Rorschach to the higher-altitude village of Heiden using a rack-and-pinion system.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Rorschach–Heiden rack railway canonical | 1 |
| Rorschach–Heiden-Bahn | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2406028 — 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: Rorschach–Heiden rack railway Context triple: [Heiden, hasTransportConnection, Rorschach–Heiden rack railway]
-
A.
Vennbahn railway
The Vennbahn railway is a historic cross-border railway line in the Ardennes region whose unique post-World War I alignment created several German exclaves within Belgium.
-
B.
Rhaetian Railway
The Rhaetian Railway is a Swiss narrow-gauge railway network in the canton of Graubünden, famed for its scenic Alpine routes and UNESCO World Heritage-listed lines.
-
C.
Bayerische Zugspitzbahn
Bayerische Zugspitzbahn is a Bavarian cogwheel railway that transports passengers from Garmisch-Partenkirchen up toward Germany’s highest peak, the Zugspitze.
-
D.
Solling Railway
The Solling Railway is a regional rail line in Germany that runs through the Solling hills, connecting towns in Lower Saxony and Hesse.
-
E.
Ringbahn
The Ringbahn is Berlin’s circular urban rail line that encircles the inner city and serves as a major hub for the Berlin S-Bahn network.
- 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: Rorschach–Heiden rack railway Target entity description: The Rorschach–Heiden rack railway is a Swiss mountain railway line that climbs steeply from the lakeside town of Rorschach to the higher-altitude village of Heiden using a rack-and-pinion system.
-
A.
Vennbahn railway
The Vennbahn railway is a historic cross-border railway line in the Ardennes region whose unique post-World War I alignment created several German exclaves within Belgium.
-
B.
Rhaetian Railway
The Rhaetian Railway is a Swiss narrow-gauge railway network in the canton of Graubünden, famed for its scenic Alpine routes and UNESCO World Heritage-listed lines.
-
C.
Bayerische Zugspitzbahn
Bayerische Zugspitzbahn is a Bavarian cogwheel railway that transports passengers from Garmisch-Partenkirchen up toward Germany’s highest peak, the Zugspitze.
-
D.
Solling Railway
The Solling Railway is a regional rail line in Germany that runs through the Solling hills, connecting towns in Lower Saxony and Hesse.
-
E.
Ringbahn
The Ringbahn is Berlin’s circular urban rail line that encircles the inner city and serves as a major hub for the Berlin S-Bahn network.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
mountain railway line
ⓘ
rack railway ⓘ |
| alsoKnownAs |
Rorschach–Heiden-Bahn
ⓘ
linked to:
Rorschach–Heiden rack railway
|
| connectsTo |
Appenzell hill country at Heiden
ⓘ
linked to:
Appenzell–St. Gallen–Bodensee area
Lake Constance lakeside at Rorschach ⓘ |
| convertedToElectricTraction | 1930 ⓘ |
| country | Switzerland ⓘ |
| electrification | electric ⓘ |
| electrificationSystem | 1500 V DC overhead line ⓘ |
| endPoint | Heiden ⓘ |
| gauge | metre gauge ⓘ |
| hasFeature |
panoramic views over Lake Constance
ⓘ
steep gradients ⓘ |
| hasStation |
Heiden
ⓘ
Rorschach ⓘ |
| infrastructureType | single-track railway line ⓘ |
| languageOfName | German ⓘ |
| lineLength | approximately 7 km ⓘ |
| locatedIn |
canton of St. Gallen
ⓘ
linked to:
Canton of St. Gallen
|
| locatedNear | Lake Constance ⓘ |
| maximumGradient | about 9 % ⓘ |
| opened | 1875 ⓘ |
| operator |
Appenzeller Bahnen
ⓘ
linked to:
Appenzeller Bahnen (AB)
|
| originalTraction | steam ⓘ |
| owner |
Appenzeller Bahnen
ⓘ
linked to:
Appenzeller Bahnen (AB)
|
| partOf | Swiss narrow-gauge railway network ⓘ |
| primaryFunction | public transport ⓘ |
| rackSectionLength | majority of line ⓘ |
| rackSystemType | Riggenbach rack system ⓘ |
| regionServed |
Appenzell region
ⓘ
linked to:
Appenzell
Lake Constance region ⓘ |
| safetySystem | rack braking system ⓘ |
| secondaryFunction | tourist railway ⓘ |
| serves |
town of Rorschach
ⓘ
village of Heiden ⓘ |
| startPoint | Rorschach ⓘ |
| status | in operation ⓘ |
| terminus |
Heiden
ⓘ
Rorschach ⓘ |
| trackGauge | 1000 mm ⓘ |
| usedFor |
commuter traffic
ⓘ
tourist excursions ⓘ |
| usesSystem | rack-and-pinion system ⓘ |
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: Rorschach–Heiden rack railway Description of subject: The Rorschach–Heiden rack railway is a Swiss mountain railway line that climbs steeply from the lakeside town of Rorschach to the higher-altitude village of Heiden using a rack-and-pinion system.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Rorschach–Heiden rack railway