Hudson River Sloop Clearwater
E510871
501(c)(3) nonprofit organization
environmental nonprofit organization
river conservation organization
Hudson River Sloop Clearwater is an environmental nonprofit organization, founded by folk singer Pete Seeger, dedicated to protecting the Hudson River and promoting environmental education and advocacy through its iconic sailing sloop and related programs.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Hudson River Sloop Clearwater canonical | 4 |
| Hudson River Sloop Clearwater organization | 1 |
| Hudson River Sloop Clearwater, Inc. | 1 |
| sloop Clearwater as educational platform | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5304516 — 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: Hudson River Sloop Clearwater Context triple: [Clearwater Festival, organizer, Hudson River Sloop Clearwater]
-
A.
Hudson River Reserve Fleet
The Hudson River Reserve Fleet was a major U.S. government anchorage on the Hudson River where surplus and decommissioned merchant and military vessels were laid up, particularly after World War II.
-
B.
Yankee Clipper
Yankee Clipper was the Apollo 12 command and service module spacecraft that carried astronauts to lunar orbit during NASA’s second Moon-landing mission.
-
C.
Charles W. Morgan
Charles W. Morgan is a historic 19th-century American whaling ship, renowned as the world’s oldest surviving commercial whaler.
-
D.
Cotton Blossom show boat
The Cotton Blossom show boat is the fictional Mississippi River steamboat that serves as the central theatrical and social setting in the musical and novel "Show Boat."
-
E.
RV Laurence M. Gould
RV Laurence M. Gould is an American research and supply ice-strengthened vessel that supports scientific missions and logistics in the Antarctic Peninsula region.
- 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: Hudson River Sloop Clearwater Target entity description: Hudson River Sloop Clearwater is an environmental nonprofit organization, founded by folk singer Pete Seeger, dedicated to protecting the Hudson River and promoting environmental education and advocacy through its iconic sailing sloop and related programs.
-
A.
Hudson River Reserve Fleet
The Hudson River Reserve Fleet was a major U.S. government anchorage on the Hudson River where surplus and decommissioned merchant and military vessels were laid up, particularly after World War II.
-
B.
Yankee Clipper
Yankee Clipper was the Apollo 12 command and service module spacecraft that carried astronauts to lunar orbit during NASA’s second Moon-landing mission.
-
C.
Charles W. Morgan
Charles W. Morgan is a historic 19th-century American whaling ship, renowned as the world’s oldest surviving commercial whaler.
-
D.
Cotton Blossom show boat
The Cotton Blossom show boat is the fictional Mississippi River steamboat that serves as the central theatrical and social setting in the musical and novel "Show Boat."
-
E.
RV Laurence M. Gould
RV Laurence M. Gould is an American research and supply ice-strengthened vessel that supports scientific missions and logistics in the Antarctic Peninsula region.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
501(c)(3) nonprofit organization
ⓘ
environmental nonprofit organization ⓘ river conservation organization ⓘ |
| ClearwaterFestivalFocus | music and environmental awareness ⓘ |
| ClearwaterFestivalFrequency | annual ⓘ |
| ClearwaterFestivalLocation |
Croton Point Park, Croton-on-Hudson, New York
ⓘ
linked to:
Croton Point Park
|
| country |
United States
ⓘ
linked to:
United States of America
|
| educationalApproach |
experiential learning aboard the sloop
ⓘ
hands-on science activities for students ⓘ public sails with environmental interpretation ⓘ |
| eventAlsoKnownAs | Great Hudson River Revival ⓘ |
| focusesOn |
PCB contamination in the Hudson River
ⓘ
climate change ⓘ environmental justice ⓘ river ecosystem health ⓘ toxic pollution ⓘ water quality ⓘ |
| foundedBy |
Pete Seeger
ⓘ
Toshi Seeger ⓘ
linked to:
Toshi-Aline Ohta Seeger
a group of environmental activists ⓘ |
| fundingSource |
donations
ⓘ
fundraising events ⓘ grants ⓘ membership dues ⓘ |
| hasVolunteerProgram | yes ⓘ |
| headquartersLocation | Beacon, New York ⓘ |
| inception | 1966 ⓘ |
| locatedIn |
Hudson River Valley
ⓘ
linked to:
Hudson Valley
|
| mainActivity |
community outreach
ⓘ
environmental advocacy campaigns ⓘ river monitoring and research support ⓘ sailing education programs on the Hudson River ⓘ school-based environmental education ⓘ |
| mission | to inspire, educate, and activate the people of the Hudson Valley to protect the Hudson River and its tributaries ⓘ |
| name | Hudson River Sloop Clearwater ⓘ |
| notableCampaign |
advocacy for Hudson River cleanup under Superfund
ⓘ
campaign against PCB pollution from General Electric plants ⓘ |
| operates | sloop Clearwater ⓘ |
| operatesIn |
Hudson River
ⓘ
New York State ⓘ |
| organizes | Clearwater Festival ⓘ |
| owns | sloop Clearwater ⓘ |
| purpose |
environmental advocacy
ⓘ
environmental education ⓘ protection of the Hudson River ⓘ |
| shortName | Clearwater ⓘ |
| uses | a traditional Hudson River cargo sloop replica for education ⓘ |
| website | https://www.clearwater.org/ ⓘ |
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: Hudson River Sloop Clearwater Description of subject: Hudson River Sloop Clearwater is an environmental nonprofit organization, founded by folk singer Pete Seeger, dedicated to protecting the Hudson River and promoting environmental education and advocacy through its iconic sailing sloop and related programs.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Hudson River Sloop Clearwater
linked to: Hudson River Sloop Clearwater
linked to: Hudson River Sloop Clearwater