MAX Blue Line
E21652
MAX Blue Line is a light rail service in the Portland, Oregon metropolitan area that connects downtown Portland with eastern and western suburbs as part of the region’s MAX Light Rail system.
All labels observed (5)
| Label | Occurrences |
|---|---|
| MAX Blue Line canonical | 33 |
| MAX Light Rail Blue Line | 2 |
| MAX Blue Line Eastside segment | 1 |
| MAX Blue Line stations | 1 |
| MAX Blue Line terminus at Hatfield Government Center | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T54790 — 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: MAX Blue Line Context triple: [TriMet, operates, MAX Blue Line]
-
A.
Blue Line
The Blue Line is a major rapid transit route in Chicago that runs between O'Hare International Airport and the city's western suburbs via downtown.
-
B.
Red Line
The Red Line is a major rapid transit route in Chicago that runs north–south through the city, serving as one of the busiest lines in its subway and elevated rail system.
-
C.
Purple Line
The Purple Line is a rapid transit route in Chicago's 'L' system that primarily serves the city's northern suburbs and connects them to the North Side of Chicago.
-
D.
Yellow Line
The Yellow Line is one of the color-coded rapid transit routes in the Washington Metro system, running primarily in a north–south direction and serving key areas in Washington, D.C. and Northern Virginia.
-
E.
Yellow Line
The Yellow Line is a rapid transit route in Chicago's 'L' system that connects the northern suburb of Skokie to the city's rail network.
- 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: MAX Blue Line Target entity description: MAX Blue Line is a light rail service in the Portland, Oregon metropolitan area that connects downtown Portland with eastern and western suburbs as part of the region’s MAX Light Rail system.
-
A.
Blue Line
The Blue Line is a major rapid transit route in Chicago that runs between O'Hare International Airport and the city's western suburbs via downtown.
-
B.
Red Line
The Red Line is a major rapid transit route in Chicago that runs north–south through the city, serving as one of the busiest lines in its subway and elevated rail system.
-
C.
Purple Line
The Purple Line is a rapid transit route in Chicago's 'L' system that primarily serves the city's northern suburbs and connects them to the North Side of Chicago.
-
D.
Yellow Line
The Yellow Line is one of the color-coded rapid transit routes in the Washington Metro system, running primarily in a north–south direction and serving key areas in Washington, D.C. and Northern Virginia.
-
E.
Yellow Line
The Yellow Line is a rapid transit route in Chicago's 'L' system that connects the northern suburb of Skokie to the city's rail network.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
light rail line
ⓘ
public transit service ⓘ |
| color | blue ⓘ |
| connectsArea |
downtown Portland to eastern suburbs
ⓘ
downtown Portland to western suburbs ⓘ |
| connectsWith |
MAX Green Line
ⓘ
MAX Orange Line ⓘ MAX Red Line ⓘ MAX Yellow Line ⓘ Portland Streetcar ⓘ TriMet bus network ⓘ WES Commuter Rail ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | overhead line ⓘ |
| fareCollection | proof-of-payment system ⓘ |
| fareSystem | TriMet fare system ⓘ |
| hasServiceType | fixed-guideway transit ⓘ |
| isPartOf |
TriMet
ⓘ
surface form:
Portland regional transit network
|
| locatedIn |
Oregon
ⓘ
Portland metropolitan area ⓘ |
| modeOfTransport | light rail ⓘ |
| operator | TriMet ⓘ |
| owner | TriMet ⓘ |
| partOf | MAX Light Rail ⓘ |
| primaryFunction | urban and suburban passenger transport ⓘ |
| regionServed |
eastern suburbs of Portland
ⓘ
western suburbs of Portland ⓘ |
| runsThrough |
City Center / Downtown Portland
ⓘ
surface form:
downtown Portland
|
| safetySystem | traffic signals and train signals ⓘ |
| serves |
Beaverton, Oregon
ⓘ
Gresham, Oregon ⓘ Hillsboro ⓘ
surface form:
Hillsboro, Oregon
Portland, Oregon, United States ⓘ
surface form:
Portland, Oregon
|
| system | MAX Light Rail ⓘ |
| terminus |
Gresham
ⓘ
Hillsboro ⓘ |
| trackGauge | standard gauge ⓘ |
| usesRightOfWay |
exclusive light rail right-of-way
ⓘ
street-running segments ⓘ |
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: MAX Blue Line Description of subject: MAX Blue Line is a light rail service in the Portland, Oregon metropolitan area that connects downtown Portland with eastern and western suburbs as part of the region’s MAX Light Rail system.
Referenced by (38)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
MAX Light Rail Blue Line
this entity surface form:
MAX Blue Line terminus at Hatfield Government Center
subject surface form:
MAX Red Line
subject surface form:
Rose Quarter Transit Center
this entity surface form:
MAX Blue Line stations
subject surface form:
Sunset Transit Center
this entity surface form:
MAX Light Rail Blue Line
subject surface form:
MAX Light Rail
this entity surface form:
MAX Blue Line Eastside segment