Grosse Point Lighthouse
E148097
Grosse Point Lighthouse is a historic 19th-century lighthouse on the shore of Lake Michigan, notable for guiding ships into the Chicago area and now serving as a preserved landmark and museum.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Grosse Point Lighthouse canonical | 9 |
| Grosse Point Lighthouse Reservation | 1 |
| Grosse Point Lighthouse grounds | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1136001 — 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: Grosse Point Lighthouse Context triple: [Evanston, Illinois, hasLandmark, Grosse Point Lighthouse]
-
A.
Marquette Harbor Lighthouse
Marquette Harbor Lighthouse is a historic red-brick navigational beacon on Lake Superior that has guided ships into Marquette, Michigan’s harbor since the 19th century.
-
B.
Old Mackinac Point Lighthouse
Old Mackinac Point Lighthouse is a historic navigational beacon and museum located at the northern tip of Michigan’s Lower Peninsula, overlooking the Mackinac Bridge and the Straits of Mackinac.
-
C.
Lorain Lighthouse
Lorain Lighthouse is a historic navigational beacon on Lake Erie, known for its distinctive architecture and status as an iconic symbol of Lorain, Ohio.
-
D.
Drum Point Lighthouse
Drum Point Lighthouse is a historic screw-pile lighthouse originally built in the 19th century to mark the entrance to Maryland’s Patuxent River and now preserved as a museum exhibit.
-
E.
Fort Gratiot Lighthouse
Fort Gratiot Lighthouse is the oldest operating lighthouse in Michigan, standing at the entrance to the St. Clair River on Lake Huron and serving as a historic maritime landmark.
- 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: Grosse Point Lighthouse Target entity description: Grosse Point Lighthouse is a historic 19th-century lighthouse on the shore of Lake Michigan, notable for guiding ships into the Chicago area and now serving as a preserved landmark and museum.
-
A.
Marquette Harbor Lighthouse
Marquette Harbor Lighthouse is a historic red-brick navigational beacon on Lake Superior that has guided ships into Marquette, Michigan’s harbor since the 19th century.
-
B.
Old Mackinac Point Lighthouse
Old Mackinac Point Lighthouse is a historic navigational beacon and museum located at the northern tip of Michigan’s Lower Peninsula, overlooking the Mackinac Bridge and the Straits of Mackinac.
-
C.
Lorain Lighthouse
Lorain Lighthouse is a historic navigational beacon on Lake Erie, known for its distinctive architecture and status as an iconic symbol of Lorain, Ohio.
-
D.
Drum Point Lighthouse
Drum Point Lighthouse is a historic screw-pile lighthouse originally built in the 19th century to mark the entrance to Maryland’s Patuxent River and now preserved as a museum exhibit.
-
E.
Fort Gratiot Lighthouse
Fort Gratiot Lighthouse is the oldest operating lighthouse in Michigan, standing at the entrance to the St. Clair River on Lake Huron and serving as a historic maritime landmark.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
historic site
ⓘ
lighthouse ⓘ museum ⓘ |
| addedToNationalRegisterOfHistoricPlaces | 1976 ⓘ |
| architecturalStyle | Victorian-era utilitarian ⓘ |
| associatedWithBodyOfWater | Lake Michigan ⓘ |
| category |
Lighthouses on the Great Lakes
ⓘ
Museums in Evanston, Illinois ⓘ |
| completionDate | 1873 ⓘ |
| constructionMaterial |
brick
ⓘ
stone ⓘ |
| constructionStart | 1872 ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| county | Cook County, Illinois ⓘ |
| currentUse |
historic landmark
ⓘ
museum ⓘ |
| designation | National Historic Landmark ⓘ |
| focalHeight | about 120 feet ⓘ |
| functionStatus | preserved ⓘ |
| hasComponent |
fog signal building
ⓘ
keeper’s dwelling ⓘ oil house ⓘ |
| height |
113 feet
ⓘ
about 34 meters ⓘ |
| heritageStatus | protected historic structure ⓘ |
| historicSignificance |
aided navigation into Chicago harbor
ⓘ
important for Great Lakes shipping ⓘ |
| lanternColor | black ⓘ |
| lensType | second-order Fresnel lens ⓘ |
| lightCharacteristic | flashing white light ⓘ |
| lightSource | Fresnel lens ⓘ |
| locatedInProtectedArea |
Grosse Point Lighthouse Reservation
ⓘ
linked to:
Grosse Point Lighthouse
|
| locatedOn | shore of Lake Michigan ⓘ |
| location | Evanston, Illinois ⓘ |
| managingOrganization |
City of Evanston
ⓘ
linked to:
Evanston, Illinois
|
| nationalHistoricLandmarkDesignationDate | 1999 ⓘ |
| nearCity |
Chicago, Illinois
ⓘ
linked to:
Chicago, Illinois, United States
|
| offers | guided tours ⓘ |
| openToPublic | yes ⓘ |
| operator | Evanston History Center ⓘ |
| owner |
City of Evanston
ⓘ
linked to:
Evanston, Illinois
|
| purpose | to guide ships into the Chicago area ⓘ |
| regionServed |
Chicago area
ⓘ
linked to:
Chicago metropolitan area
|
| state | Illinois ⓘ |
| surroundedBy | parkland ⓘ |
| towerColor | cream-colored ⓘ |
| towerShape | conical tower ⓘ |
| yearLit | 1874 ⓘ |
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: Grosse Point Lighthouse Description of subject: Grosse Point Lighthouse is a historic 19th-century lighthouse on the shore of Lake Michigan, notable for guiding ships into the Chicago area and now serving as a preserved landmark and museum.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Grosse Point Lighthouse
subject linked to:
Lighthouse Beach
subject linked to:
Lighthouse Beach
subject linked to:
Lighthouse Beach
linked to: Grosse Point Lighthouse