O'Neill Tunnel
E396353
The O'Neill Tunnel is a major highway tunnel in downtown Boston that carries Interstate 93 beneath the city as part of the Big Dig project.
All labels observed (3)
| Label | Occurrences |
|---|---|
| O'Neill Tunnel canonical | 2 |
| O’Neill Tunnel | 1 |
| Thomas P. O’Neill Jr. Tunnel | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3870927 — 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: O'Neill Tunnel Context triple: [Big Dig, includesStructure, O'Neill Tunnel]
-
A.
Clyde Tunnel
The Clyde Tunnel is a road tunnel in Glasgow, Scotland, carrying vehicular traffic beneath the River Clyde to connect the city’s north and south banks.
-
B.
Eisenhower–Johnson Memorial Tunnel
The Eisenhower–Johnson Memorial Tunnel is a high-altitude vehicular tunnel through the Rocky Mountains in Colorado, carrying Interstate 70 beneath the Continental Divide.
-
C.
Robertson Tunnel
Robertson Tunnel is a major light rail tunnel in Portland, Oregon, carrying MAX trains through the West Hills between downtown and the city’s western suburbs.
-
D.
Malinta Tunnel
Malinta Tunnel is a historic underground complex on Corregidor Island in the Philippines that served as a bomb-proof headquarters and hospital for American and Filipino forces during World War II.
-
E.
George Massey Tunnel
The George Massey Tunnel is a highway traffic tunnel in British Columbia, Canada, that carries vehicles beneath the Fraser River between Richmond and Delta.
- 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: O'Neill Tunnel Target entity description: The O'Neill Tunnel is a major highway tunnel in downtown Boston that carries Interstate 93 beneath the city as part of the Big Dig project.
-
A.
Clyde Tunnel
The Clyde Tunnel is a road tunnel in Glasgow, Scotland, carrying vehicular traffic beneath the River Clyde to connect the city’s north and south banks.
-
B.
Eisenhower–Johnson Memorial Tunnel
The Eisenhower–Johnson Memorial Tunnel is a high-altitude vehicular tunnel through the Rocky Mountains in Colorado, carrying Interstate 70 beneath the Continental Divide.
-
C.
Robertson Tunnel
Robertson Tunnel is a major light rail tunnel in Portland, Oregon, carrying MAX trains through the West Hills between downtown and the city’s western suburbs.
-
D.
Malinta Tunnel
Malinta Tunnel is a historic underground complex on Corregidor Island in the Philippines that served as a bomb-proof headquarters and hospital for American and Filipino forces during World War II.
-
E.
George Massey Tunnel
The George Massey Tunnel is a highway traffic tunnel in British Columbia, Canada, that carries vehicles beneath the Fraser River between Richmond and Delta.
- F. None of above. chosen
Statements (37)
| Predicate | Object |
|---|---|
| instanceOf |
highway tunnel
ⓘ
road tunnel ⓘ transport infrastructure ⓘ |
| carries | Interstate 93 ⓘ |
| connectsWith |
I-90 (Massachusetts Turnpike) via Big Dig connections
ⓘ
linked to:
Interstate 90 (Massachusetts)
Zakim Bridge (Leonard P. Zakim Bunker Hill Memorial Bridge) ⓘ
linked to:
Zakim Bridge
|
| constructionMethod | cut-and-cover tunneling ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| hasDirection |
northbound tubes
ⓘ
southbound tubes ⓘ |
| hasEmergencyExits | yes ⓘ |
| hasFireSuppression | fire protection systems ⓘ |
| hasLanes | multiple lanes in each direction ⓘ |
| hasLighting | continuous tunnel lighting ⓘ |
| hasSpeedLimit | posted freeway speed limit ⓘ |
| hasTrafficMonitoring | yes ⓘ |
| hasVentilationSystem | yes ⓘ |
| isComponentOf |
Interstate 93 corridor through Boston
ⓘ
linked to:
Interstate 93 in Massachusetts
|
| isMajorRouteFor |
commuter traffic in Greater Boston
ⓘ
regional north–south traffic through Boston ⓘ |
| isStrategicFor |
Boston transportation network
ⓘ
New England interstate travel ⓘ |
| locatedIn |
Boston
ⓘ
linked to:
Boston, Massachusetts
Massachusetts ⓘ United States ⓘ
linked to:
United States of America
|
| maintainedBy | Massachusetts Department of Transportation ⓘ |
| namedAfter | Tip O'Neill ⓘ |
| officialName | Thomas P. O'Neill Jr. Tunnel ⓘ |
| opened | 2003 ⓘ |
| partOf | Big Dig ⓘ |
| partOfProject | Central Artery/Tunnel Project ⓘ |
| passesThrough | Suffolk County, Massachusetts ⓘ |
| replaced | elevated Central Artery segment of I-93 in Boston ⓘ |
| roadTypeCarried |
Interstate Highway
ⓘ
urban expressway ⓘ |
| runsUnder |
downtown Boston
ⓘ
linked to:
Downtown Boston
|
| urbanSetting | dense downtown environment ⓘ |
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: O'Neill Tunnel Description of subject: The O'Neill Tunnel is a major highway tunnel in downtown Boston that carries Interstate 93 beneath the city as part of the Big Dig project.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: O'Neill Tunnel
linked to: O'Neill Tunnel