Howrah Bridge
E43286
Howrah Bridge is an iconic cantilever bridge spanning the Hooghly River in Kolkata, India, renowned as a major transportation lifeline and architectural symbol of the city.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Howrah Bridge canonical | 16 |
| Rabindra Setu | 2 |
| New Howrah Bridge | 1 |
| Old Howrah Bridge | 1 |
| Vidyasagar Setu | 1 |
| Vivekananda Setu | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T236684 — 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: Howrah Bridge Context triple: [Calcutta, hasLandmark, Howrah Bridge]
-
A.
Trinity Bridge
Trinity Bridge is a distinctive three-way footbridge in Greater Manchester, England, designed by architect Santiago Calatrava to link Salford and Manchester across the River Irwell.
-
B.
Long Bridge
Long Bridge is a major railroad bridge over the Potomac River in Washington, D.C., carrying freight and passenger trains between the District of Columbia and Virginia.
-
C.
Wellington Bridge
Wellington Bridge is a roadway bridge in the Boston area that carries traffic across the Mystic River between Medford and Somerville, Massachusetts.
-
D.
Bay Bridge
The Bay Bridge is a major suspension bridge complex in the San Francisco Bay Area that connects San Francisco and Oakland across San Francisco Bay.
-
E.
Adelphi Footbridge
Adelphi Footbridge is a pedestrian bridge spanning the River Irwell in Salford, England, providing a crossing between key areas of the city.
- 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: Howrah Bridge Target entity description: Howrah Bridge is an iconic cantilever bridge spanning the Hooghly River in Kolkata, India, renowned as a major transportation lifeline and architectural symbol of the city.
-
A.
Trinity Bridge
Trinity Bridge is a distinctive three-way footbridge in Greater Manchester, England, designed by architect Santiago Calatrava to link Salford and Manchester across the River Irwell.
-
B.
Long Bridge
Long Bridge is a major railroad bridge over the Potomac River in Washington, D.C., carrying freight and passenger trains between the District of Columbia and Virginia.
-
C.
Wellington Bridge
Wellington Bridge is a roadway bridge in the Boston area that carries traffic across the Mystic River between Medford and Somerville, Massachusetts.
-
D.
Bay Bridge
The Bay Bridge is a major suspension bridge complex in the San Francisco Bay Area that connects San Francisco and Oakland across San Francisco Bay.
-
E.
Adelphi Footbridge
Adelphi Footbridge is a pedestrian bridge spanning the River Irwell in Salford, England, providing a crossing between key areas of the city.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
cantilever bridge
ⓘ
landmark ⓘ road bridge ⓘ tourist attraction ⓘ |
| alsoKnownAs | Gateway to Kolkata ⓘ |
| carries |
buses
ⓘ
motor vehicles ⓘ pedestrians ⓘ taxis ⓘ trams ⓘ |
| connects |
Howrah
ⓘ
Howrah district ⓘ
linked to:
Howrah
Kolkata ⓘ
linked to:
Calcutta
Kolkata district ⓘ |
| constructionCompleted | 1942 ⓘ |
| crosses | Hooghly River ⓘ |
| crossesBetween |
Burrabazar area
ⓘ
Howrah station area ⓘ |
| designedAs | riveted steel structure ⓘ |
| designType | balanced cantilever ⓘ |
| doesNotCarry | railway tracks ⓘ |
| featuredIn |
Bengali films
ⓘ
Indian films ⓘ photography ⓘ postcards ⓘ |
| footpathWidth | about 15 feet each ⓘ |
| governedBy | Howrah Bridge Act ⓘ |
| hasFootpaths | 2 footpaths ⓘ |
| hasLanes | 8 road lanes ⓘ |
| heritageStatus | iconic structure of Kolkata ⓘ |
| length | about 705 metres ⓘ |
| lighting | decorative illumination at night ⓘ |
| locatedIn |
India
ⓘ
Kolkata ⓘ
linked to:
Calcutta
West Bengal ⓘ |
| locatedNear |
B.B.D. Bagh
ⓘ
Howrah Junction railway station ⓘ |
| mainSpanLength | about 457 metres ⓘ |
| maintainedBy |
Kolkata Port Trust
ⓘ
Syama Prasad Mookerjee Port, Kolkata ⓘ |
| material | steel ⓘ |
| namedAfter | Rabindranath Tagore ⓘ |
| officialName |
Rabindra Setu
ⓘ
linked to:
Howrah Bridge
|
| opened | 1943 ⓘ |
| replaced | Old pontoon bridge over Hooghly River ⓘ |
| symbolOf |
Bengal engineering heritage
ⓘ
Kolkata ⓘ
linked to:
Calcutta
|
| traffic | one of the busiest cantilever bridges in the world ⓘ |
| width | about 71 feet ⓘ |
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: Howrah Bridge Description of subject: Howrah Bridge is an iconic cantilever bridge spanning the Hooghly River in Kolkata, India, renowned as a major transportation lifeline and architectural symbol of the city.
Referenced by (22)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Howrah Bridge
linked to: Howrah Bridge
linked to: Howrah Bridge
subject linked to:
Kolkata, West Bengal, India
linked to: Howrah Bridge
linked to: Howrah Bridge