Jefferson Street Viaduct
E928728
Jefferson Street Viaduct is a historic bridge in Ottumwa, Iowa, that carries Jefferson Street across the Des Moines River and nearby rail lines.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Jefferson Street Viaduct canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11485953 — 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: Jefferson Street Viaduct Context triple: [Ottumwa, Iowa, hasRiverCrossing, Jefferson Street Viaduct]
-
A.
Jefferson Boulevard Viaduct
Jefferson Boulevard Viaduct is a historic roadway bridge in Dallas, Texas, that carries traffic across the Trinity River and has long served as a key transportation link for the city.
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B.
Spokane Street Viaduct
The Spokane Street Viaduct is an elevated roadway in Seattle that connects Interstate 5 to the West Seattle Bridge, carrying traffic over the SoDo industrial district.
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C.
Riverside Drive Viaduct
Riverside Drive Viaduct is an elevated steel and concrete roadway structure in Manhattan that carries Riverside Drive above the Amtrak rail lines and low-lying areas along the Hudson River.
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D.
Sixth Street Viaduct
The Sixth Street Viaduct is an iconic Los Angeles bridge known for spanning the downtown area and connecting the Arts District with Boyle Heights.
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E.
Park Avenue Viaduct
The Park Avenue Viaduct is an elevated roadway in Midtown Manhattan that carries traffic around Grand Central Terminal, connecting Park Avenue across 42nd Street.
- 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: Jefferson Street Viaduct Target entity description: Jefferson Street Viaduct is a historic bridge in Ottumwa, Iowa, that carries Jefferson Street across the Des Moines River and nearby rail lines.
-
A.
Jefferson Boulevard Viaduct
Jefferson Boulevard Viaduct is a historic roadway bridge in Dallas, Texas, that carries traffic across the Trinity River and has long served as a key transportation link for the city.
-
B.
Spokane Street Viaduct
The Spokane Street Viaduct is an elevated roadway in Seattle that connects Interstate 5 to the West Seattle Bridge, carrying traffic over the SoDo industrial district.
-
C.
Riverside Drive Viaduct
Riverside Drive Viaduct is an elevated steel and concrete roadway structure in Manhattan that carries Riverside Drive above the Amtrak rail lines and low-lying areas along the Hudson River.
-
D.
Sixth Street Viaduct
The Sixth Street Viaduct is an iconic Los Angeles bridge known for spanning the downtown area and connecting the Arts District with Boyle Heights.
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E.
Park Avenue Viaduct
The Park Avenue Viaduct is an elevated roadway in Midtown Manhattan that carries traffic around Grand Central Terminal, connecting Park Avenue across 42nd Street.
- F. None of above. chosen
Statements (19)
| Predicate | Object |
|---|---|
| instanceOf |
bridge
ⓘ
historic place ⓘ road bridge ⓘ viaduct ⓘ |
| carries | Jefferson Street NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crosses |
Des Moines River
NERFINISHED
ⓘ
rail lines ⓘ |
| hasHistoricalSignificance | example of early 20th-century urban river crossing in Iowa ⓘ |
| hasUse |
pedestrian traffic
ⓘ
vehicular traffic ⓘ |
| heritageDesignation | National Register of Historic Places ⓘ |
| locatedIn |
Iowa
ⓘ
Ottumwa, Iowa NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
Wapello County, Iowa NERFINISHED ⓘ |
| namedAfter | Jefferson Street NERFINISHED ⓘ |
| partOf | transportation infrastructure of Ottumwa, Iowa ⓘ |
| spans | Des Moines River valley NERFINISHED ⓘ |
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: Jefferson Street Viaduct Description of subject: Jefferson Street Viaduct is a historic bridge in Ottumwa, Iowa, that carries Jefferson Street across the Des Moines River and nearby rail lines.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.