Upper Charles Rail Trail
E475245
The Upper Charles Rail Trail is a multi-use recreational path in Massachusetts that follows a former railroad corridor, offering scenic walking, running, and cycling routes through several communities including Holliston.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Upper Charles Rail Trail canonical | 1 |
| Upper Charles Trail | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4853078 — 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: Upper Charles Rail Trail Context triple: [Holliston, Massachusetts, hasRailTrail, Upper Charles Rail Trail]
-
A.
Ashuwillticook Rail Trail
Ashuwillticook Rail Trail is a scenic multi-use path in western Massachusetts that follows a former railroad corridor along lakes, rivers, and mountain views popular for walking, running, and cycling.
-
B.
Wallkill Valley Rail Trail
The Wallkill Valley Rail Trail is a scenic multi-use path in New York’s Hudson Valley that follows a former railroad corridor through towns like New Paltz, offering hiking, biking, and nature viewing.
-
C.
Spruce Railroad Trail
Spruce Railroad Trail is a scenic hiking and biking path in Washington’s Olympic National Park that follows an old railroad grade along the shores of Lake Crescent.
-
D.
Root River State Trail
Root River State Trail is a scenic multi-use recreational trail in southeastern Minnesota that follows the Root River through small towns and rural landscapes, popular for biking, hiking, and cross-country skiing.
-
E.
South County Trailway
The South County Trailway is a paved multi-use rail trail in Westchester County, New York, popular for cycling, running, and walking along a former railroad corridor.
- 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: Upper Charles Rail Trail Target entity description: The Upper Charles Rail Trail is a multi-use recreational path in Massachusetts that follows a former railroad corridor, offering scenic walking, running, and cycling routes through several communities including Holliston.
-
A.
Ashuwillticook Rail Trail
Ashuwillticook Rail Trail is a scenic multi-use path in western Massachusetts that follows a former railroad corridor along lakes, rivers, and mountain views popular for walking, running, and cycling.
-
B.
Wallkill Valley Rail Trail
The Wallkill Valley Rail Trail is a scenic multi-use path in New York’s Hudson Valley that follows a former railroad corridor through towns like New Paltz, offering hiking, biking, and nature viewing.
-
C.
Spruce Railroad Trail
Spruce Railroad Trail is a scenic hiking and biking path in Washington’s Olympic National Park that follows an old railroad grade along the shores of Lake Crescent.
-
D.
Root River State Trail
Root River State Trail is a scenic multi-use recreational trail in southeastern Minnesota that follows the Root River through small towns and rural landscapes, popular for biking, hiking, and cross-country skiing.
-
E.
South County Trailway
The South County Trailway is a paved multi-use rail trail in Westchester County, New York, popular for cycling, running, and walking along a former railroad corridor.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
multi-use recreational path
ⓘ
rail trail ⓘ |
| access | multiple trailheads in participating towns ⓘ |
| category |
protected areas of Middlesex County, Massachusetts
ⓘ
protected areas of Worcester County, Massachusetts ⓘ rail trails in Massachusetts ⓘ |
| connects |
commercial areas
ⓘ
parks and open spaces ⓘ residential areas ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| developmentStatus | partially completed and partially planned ⓘ |
| follows | former railroad corridor ⓘ |
| formerUseOfCorridor | railroad line ⓘ |
| hasFeature |
bridges
ⓘ
road crossings ⓘ scenic views ⓘ wetlands ⓘ wooded areas ⓘ |
| hasSection | Holliston section of Upper Charles Rail Trail ⓘ |
| intendedUse |
non-motorized transportation
ⓘ
recreation ⓘ |
| locatedIn |
Holliston, Massachusetts
ⓘ
Massachusetts ⓘ |
| maintainedBy | local municipalities along the corridor ⓘ |
| openTo |
bicycles
ⓘ
dog walkers ⓘ joggers ⓘ pedestrians ⓘ |
| partOf | regional trail network in MetroWest Massachusetts ⓘ |
| passesThrough |
Ashland, Massachusetts
ⓘ
Holliston, Massachusetts ⓘ Hopkinton, Massachusetts ⓘ Milford, Massachusetts ⓘ Sherborn, Massachusetts ⓘ |
| region |
MetroWest region of Massachusetts
ⓘ
linked to:
Metrowest (Massachusetts)
|
| season | open year-round, weather permitting ⓘ |
| surfaceType |
paved sections
ⓘ
stone dust sections ⓘ |
| usedFor |
cycling
ⓘ
running ⓘ walking ⓘ |
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: Upper Charles Rail Trail Description of subject: The Upper Charles Rail Trail is a multi-use recreational path in Massachusetts that follows a former railroad corridor, offering scenic walking, running, and cycling routes through several communities including Holliston.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Upper Charles Rail Trail