Sullivan’s Gulch ravine
E185724
Sullivan’s Gulch ravine is a steep, narrow canyon in northeast Portland, Oregon, through which Interstate 84 and railroad lines run.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sullivan’s Gulch ravine canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1649488 — 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: Sullivan’s Gulch ravine Context triple: [Sullivan’s Gulch, hasNameOrigin, Sullivan’s Gulch ravine]
-
A.
Gower Gulch
Gower Gulch is a scenic desert canyon and hiking route in Death Valley National Park known for its colorful badlands and eroded rock formations.
-
B.
Rock Creek Canyon
Rock Creek Canyon is a scenic glacially carved valley in California’s eastern Sierra Nevada, known for its alpine lakes, granite peaks, and popular hiking and fishing opportunities.
-
C.
Polk Gulch
Polk Gulch is a historic San Francisco neighborhood known for its vibrant nightlife and role as one of the city’s earliest LGBTQ+ communities.
-
D.
Redwood Canyon
Redwood Canyon is the historic name for the coastal redwood forest area now preserved as Muir Woods National Monument in California.
-
E.
ʻOheʻo Gulch
ʻOheʻo Gulch is a scenic series of cascading waterfalls and freshwater pools set within the lush coastal landscape of Haleakalā National Park on the island of Maui.
- 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: Sullivan’s Gulch ravine Target entity description: Sullivan’s Gulch ravine is a steep, narrow canyon in northeast Portland, Oregon, through which Interstate 84 and railroad lines run.
-
A.
Gower Gulch
Gower Gulch is a scenic desert canyon and hiking route in Death Valley National Park known for its colorful badlands and eroded rock formations.
-
B.
Rock Creek Canyon
Rock Creek Canyon is a scenic glacially carved valley in California’s eastern Sierra Nevada, known for its alpine lakes, granite peaks, and popular hiking and fishing opportunities.
-
C.
Polk Gulch
Polk Gulch is a historic San Francisco neighborhood known for its vibrant nightlife and role as one of the city’s earliest LGBTQ+ communities.
-
D.
Redwood Canyon
Redwood Canyon is the historic name for the coastal redwood forest area now preserved as Muir Woods National Monument in California.
-
E.
ʻOheʻo Gulch
ʻOheʻo Gulch is a scenic series of cascading waterfalls and freshwater pools set within the lush coastal landscape of Haleakalā National Park on the island of Maui.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
canyon
ⓘ
geographical feature ⓘ landform ⓘ |
| associatedWith | Sullivan’s Gulch neighborhood ⓘ |
| crossedBy | multiple street overpasses in Portland ⓘ |
| environmentType | urban canyon ⓘ |
| hasCharacteristic |
narrow
ⓘ
steep ⓘ |
| hasInfrastructure |
freeway
ⓘ
railroad ⓘ |
| hasNameOrigin | named after early settler Timothy Sullivan ⓘ |
| locatedIn |
Multnomah County, Oregon
ⓘ
linked to:
Multnomah County
Northeast Portland ⓘ Oregon ⓘ Portland, Oregon ⓘ
linked to:
Portland, Oregon, United States
United States ⓘ
linked to:
United States of America
|
| near | Willamette River ⓘ |
| orientation | generally east–west ⓘ |
| partOf |
Columbia River drainage basin
ⓘ
linked to:
Columbia River Basin
|
| separates |
Lloyd District from residential areas to the north
ⓘ
linked to:
Lloyd District
|
| traversedBy |
Interstate 84
ⓘ
Union Pacific Railroad lines ⓘ
linked to:
Union Pacific Railroad line
freight railroad tracks ⓘ |
| usedFor | transportation corridor ⓘ |
| withinUrbanArea | Portland metropolitan area ⓘ |
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: Sullivan’s Gulch ravine Description of subject: Sullivan’s Gulch ravine is a steep, narrow canyon in northeast Portland, Oregon, through which Interstate 84 and railroad lines run.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Sullivan’s Gulch neighborhood