Porter
E516
Porter is a transit station in Cambridge, Massachusetts that serves both MBTA commuter rail and Red Line subway services.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Porter canonical | 12 |
| Assembly station | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3492 — 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: Porter Context triple: [MBTA Fitchburg Line, hasStation, Porter]
-
A.
Douglas
Douglas is a masculine given name of Scottish origin that has been widely used in English-speaking countries.
-
B.
Andrew
Andrew is a masculine given name of Greek origin meaning "manly" or "brave," widely used in English-speaking countries and beyond.
-
C.
Bolt Beranek and Newman
Bolt Beranek and Newman was a pioneering American research and engineering firm best known for its foundational role in developing the ARPANET, a precursor to the modern internet.
-
D.
Rockwell Cage
Rockwell Cage is an indoor athletic facility at the Massachusetts Institute of Technology that serves as the primary venue for the MIT Engineers’ home sports events.
-
E.
Carnegie
Carnegie is a Scottish surname most famously associated with industrialist and philanthropist Andrew Carnegie.
- 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: Porter Target entity description: Porter is a transit station in Cambridge, Massachusetts that serves both MBTA commuter rail and Red Line subway services.
-
A.
Douglas
Douglas is a masculine given name of Scottish origin that has been widely used in English-speaking countries.
-
B.
Andrew
Andrew is a masculine given name of Greek origin meaning "manly" or "brave," widely used in English-speaking countries and beyond.
-
C.
Bolt Beranek and Newman
Bolt Beranek and Newman was a pioneering American research and engineering firm best known for its foundational role in developing the ARPANET, a precursor to the modern internet.
-
D.
Rockwell Cage
Rockwell Cage is an indoor athletic facility at the Massachusetts Institute of Technology that serves as the primary venue for the MIT Engineers’ home sports events.
-
E.
Carnegie
Carnegie is a Scottish surname most famously associated with industrialist and philanthropist Andrew Carnegie.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
MBTA station
ⓘ
commuter rail station ⓘ railway station ⓘ rapid transit station ⓘ |
| accessibleFor | wheelchair users ⓘ |
| code | Porter (MBTA station) ⓘ |
| commuterRailPropulsion | diesel locomotives (Fitchburg Line) ⓘ |
| connectsTo | MBTA bus routes ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| depthRank | one of the deepest MBTA Red Line stations ⓘ |
| electrification | third rail (Red Line) ⓘ |
| fareSystem | MBTA fare system ⓘ |
| fareZone | Zone 1A (commuter rail) ⓘ |
| hasAccessibility | yes ⓘ |
| hasArtInstallation | yes ⓘ |
| hasBicycleFacilities | yes ⓘ |
| hasElevators | yes ⓘ |
| hasEscalators | yes ⓘ |
| hasParking | no dedicated park-and-ride lot ⓘ |
| locatedIn |
Cambridge, Massachusetts
ⓘ
Greater Boston ⓘ Massachusetts ⓘ Middlesex County, Massachusetts ⓘ Porter Square ⓘ |
| nearbyLandmark |
Lesley University
ⓘ
Porter Square Shopping Center ⓘ
linked to:
Porter Square
|
| numberOfTracks |
2 (Red Line)
ⓘ
2 (commuter rail) ⓘ |
| openedAsRedLineStation | 1984 ⓘ |
| operator |
Massachusetts Bay Transportation Authority
ⓘ
linked to:
MBTA
|
| ownedBy |
Massachusetts Bay Transportation Authority
ⓘ
linked to:
MBTA
|
| partOfNetwork |
MBTA Commuter Rail
ⓘ
linked to:
MBTA
MBTA subway ⓘ
linked to:
MBTA
|
| platformConfiguration |
1 island platform (Red Line)
ⓘ
2 side platforms (commuter rail) ⓘ |
| railGauge | standard gauge ⓘ |
| servesCity | Cambridge, Massachusetts ⓘ |
| servesLine |
Fitchburg Line
ⓘ
linked to:
MBTA Fitchburg Line
MBTA Red Line ⓘ |
| servesMode |
bus connections
ⓘ
commuter rail ⓘ subway ⓘ |
| structureType |
below-grade station
ⓘ
underground station ⓘ |
| ticketing |
commuter rail ticket validation on platforms
ⓘ
faregates for Red Line ⓘ |
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: Porter Description of subject: Porter is a transit station in Cambridge, Massachusetts that serves both MBTA commuter rail and Red Line subway services.
Referenced by (13)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Assembly Square, Somerville
linked to: Porter
subject linked to:
Porter Square MBTA Red Line station
subject linked to:
MBTA Commuter Rail Fitchburg Line (nearby)