Demidov Bridge
E177810
Demidov Bridge is a historic cast-iron pedestrian and vehicular bridge in Saint Petersburg, Russia, notable for its 19th-century architecture and ornate decorative elements.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Demidov Bridge canonical | 2 |
| Первый Садовый мост | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1420388 — 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: Demidov Bridge Context triple: [Griboyedov Canal, hasBridge, Demidov Bridge]
-
A.
Krasnogvardeysky Bridge
Krasnogvardeysky Bridge is a historic pedestrian bridge in Saint Petersburg, Russia, known for spanning the Griboyedov Canal near the city’s central landmarks.
-
B.
Mogilyovsky Bridge
Mogilyovsky Bridge is a historic span in Saint Petersburg, Russia, crossing the Griboyedov Canal and connecting central city districts.
-
C.
Ioannovsky Bridge
Ioannovsky Bridge is a historic pedestrian bridge in Saint Petersburg, Russia, serving as one of the main access routes to the Peter and Paul Fortress across the Kronverksky Strait.
-
D.
Bolshoy Kamenny Bridge
Bolshoy Kamenny Bridge is a major historic road bridge in central Moscow, Russia, known for its views of the Kremlin and its role as a key crossing over the Moskva River.
-
E.
Novo-Nikolsky Bridge
Novo-Nikolsky Bridge is a historic pedestrian bridge in Saint Petersburg, Russia, spanning the Griboyedov Canal near the Nikolsky Marine Cathedral.
- 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: Demidov Bridge Target entity description: Demidov Bridge is a historic cast-iron pedestrian and vehicular bridge in Saint Petersburg, Russia, notable for its 19th-century architecture and ornate decorative elements.
-
A.
Krasnogvardeysky Bridge
Krasnogvardeysky Bridge is a historic pedestrian bridge in Saint Petersburg, Russia, known for spanning the Griboyedov Canal near the city’s central landmarks.
-
B.
Mogilyovsky Bridge
Mogilyovsky Bridge is a historic span in Saint Petersburg, Russia, crossing the Griboyedov Canal and connecting central city districts.
-
C.
Ioannovsky Bridge
Ioannovsky Bridge is a historic pedestrian bridge in Saint Petersburg, Russia, serving as one of the main access routes to the Peter and Paul Fortress across the Kronverksky Strait.
-
D.
Bolshoy Kamenny Bridge
Bolshoy Kamenny Bridge is a major historic road bridge in central Moscow, Russia, known for its views of the Kremlin and its role as a key crossing over the Moskva River.
-
E.
Novo-Nikolsky Bridge
Novo-Nikolsky Bridge is a historic pedestrian bridge in Saint Petersburg, Russia, spanning the Griboyedov Canal near the Nikolsky Marine Cathedral.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
bridge
ⓘ
cast-iron bridge ⓘ pedestrian bridge ⓘ road bridge ⓘ |
| architecturalStyle | 19th-century Russian classicism ⓘ |
| country | Russia ⓘ |
| crosses | Griboyedov Canal ⓘ |
| hasConstructionPeriod | 19th century ⓘ |
| hasDecorativeElement |
decorative lanterns
ⓘ
ornamental panels ⓘ ornate cast-iron railings ⓘ |
| hasFunction |
pedestrian crossing
ⓘ
road transport ⓘ |
| hasNotableFeature |
historic cast-iron construction
ⓘ
ornate decorative elements ⓘ |
| hasStructureType | arch bridge ⓘ |
| hasSurface |
roadway
ⓘ
sidewalks ⓘ |
| hasUse |
pedestrian traffic
ⓘ
vehicular traffic ⓘ |
| heritageStatus | cultural heritage monument of regional significance in Saint Petersburg ⓘ |
| isInWaterSystem |
Griboyedov Canal
ⓘ
surface form:
Griboyedov Canal waterway system
|
| isTouristAttraction | true ⓘ |
| locatedIn |
Admiralteysky District
ⓘ
St. Petersburg ⓘ
surface form:
Saint Petersburg
historic center of Saint Petersburg ⓘ |
| material | cast iron ⓘ |
| namedAfter | Demidov family ⓘ |
| spans | Griboyedov Canal ⓘ |
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: Demidov Bridge Description of subject: Demidov Bridge is a historic cast-iron pedestrian and vehicular bridge in Saint Petersburg, Russia, notable for its 19th-century architecture and ornate decorative elements.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Первый Садовый мост