Triple

T5157021
Position Surface form Disambiguated ID Type / Status
Subject Weston, Massachusetts E116334 entity
Predicate hasTrail P3625 FINISHED
Object Mass Central Rail Trail
The Mass Central Rail Trail is a long-distance multi-use recreational path in Massachusetts that follows the former Massachusetts Central Railroad corridor through numerous communities.
 E498277 NE FINISHED

How this triple was built (4 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Mass Central Rail Trail | Statement: [Weston, Massachusetts, hasTrail, Mass Central Rail Trail]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Mass Central Rail Trail
Context triple: [Weston, Massachusetts, hasTrail, Mass Central Rail Trail]
  • A. Nashua River Rail Trail
    Nashua River Rail Trail is a scenic multi-use recreational path in Massachusetts that follows the Nashua River along a former railroad corridor, popular for walking, running, and cycling.
  • B. Massachusetts rail trail network
    The Massachusetts rail trail network is an interconnected system of multi-use paths built on former railroad corridors across the state, providing recreational and commuter routes for cyclists, walkers, and other non-motorized users.
  • C. Charles River Bike Path
    The Charles River Bike Path is a popular multi-use recreational trail that runs along the Charles River, offering scenic views and a key commuting and leisure route for cyclists, runners, and walkers in the Boston–Cambridge area.
  • D. 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.
  • E. Minuteman Bikeway
    Minuteman Bikeway is a popular multi-use rail trail in Massachusetts that follows a historic railroad corridor through several suburban communities northwest of Boston.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Mass Central Rail Trail
Triple: [Weston, Massachusetts, hasTrail, Mass Central Rail Trail]
Generated description
The Mass Central Rail Trail is a long-distance multi-use recreational path in Massachusetts that follows the former Massachusetts Central Railroad corridor through numerous communities.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Mass Central Rail Trail
Target entity description: The Mass Central Rail Trail is a long-distance multi-use recreational path in Massachusetts that follows the former Massachusetts Central Railroad corridor through numerous communities.
  • A. Nashua River Rail Trail
    Nashua River Rail Trail is a scenic multi-use recreational path in Massachusetts that follows the Nashua River along a former railroad corridor, popular for walking, running, and cycling.
  • B. Massachusetts rail trail network
    The Massachusetts rail trail network is an interconnected system of multi-use paths built on former railroad corridors across the state, providing recreational and commuter routes for cyclists, walkers, and other non-motorized users.
  • C. Charles River Bike Path
    The Charles River Bike Path is a popular multi-use recreational trail that runs along the Charles River, offering scenic views and a key commuting and leisure route for cyclists, runners, and walkers in the Boston–Cambridge area.
  • D. 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.
  • E. Minuteman Bikeway
    Minuteman Bikeway is a popular multi-use rail trail in Massachusetts that follows a historic railroad corridor through several suburban communities northwest of Boston.
  • F. None of above. chosen

Provenance (5 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69bd445d94788190b72e2cc563120995 completed March 20, 2026, 12:58 p.m.
NER Named-entity recognition batch_69bd7902fbe48190abb58cb0b2b2b62d completed March 20, 2026, 4:42 p.m.
NED1 Entity disambiguation (via context triple) batch_69bed0168a648190a470507802aa8934 completed March 21, 2026, 5:06 p.m.
NEDg Description generation batch_69bed0b4c8648190a151383277a8297d completed March 21, 2026, 5:09 p.m.
NED2 Entity disambiguation (via description) batch_69bed14d7a5c8190ac5b09f59a8dda1a completed March 21, 2026, 5:11 p.m.
Created at: March 20, 2026, 1:44 p.m.