Triple

T9285251
Position Surface form Disambiguated ID Type / Status
Subject Tiburon Peninsula E223376 entity
Predicate contains P35 FINISHED
Object Old Rail Trail (multi-use path)
Old Rail Trail is a popular multi-use path on the Tiburon Peninsula in California, following a former railroad corridor along the scenic shoreline of San Francisco Bay.
 E789363 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: Old Rail Trail (multi-use path) | Statement: [Tiburon Peninsula, contains, Old Rail Trail (multi-use path)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Old Rail Trail (multi-use path)
Context triple: [Tiburon Peninsula, contains, Old Rail Trail (multi-use path)]
  • A. Bruce Freeman Rail Trail
    The Bruce Freeman Rail Trail is a multi-use recreational path in Massachusetts that follows a former railroad corridor through several communities, offering scenic routes for walking, running, and cycling.
  • B. Indian Head Rail Trail
    Indian Head Rail Trail is a multi-use recreational path in Charles County, Maryland, converted from a former railroad corridor and popular for walking, running, and cycling.
  • C. Oro-Medonte Rail Trail
    The Oro-Medonte Rail Trail is a recreational multi-use trail in Oro-Medonte, Ontario, that follows a former railway corridor for activities like walking, cycling, and snowmobiling.
  • D. Iron Horse Regional Trail
    The Iron Horse Regional Trail is a multi-use, paved rail-trail in California’s East Bay that follows a former railroad corridor through several communities, including Danville.
  • E. 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.
  • 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: Old Rail Trail (multi-use path)
Triple: [Tiburon Peninsula, contains, Old Rail Trail (multi-use path)]
Generated description
Old Rail Trail is a popular multi-use path on the Tiburon Peninsula in California, following a former railroad corridor along the scenic shoreline of San Francisco Bay.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Old Rail Trail (multi-use path)
Target entity description: Old Rail Trail is a popular multi-use path on the Tiburon Peninsula in California, following a former railroad corridor along the scenic shoreline of San Francisco Bay.
  • A. Bruce Freeman Rail Trail
    The Bruce Freeman Rail Trail is a multi-use recreational path in Massachusetts that follows a former railroad corridor through several communities, offering scenic routes for walking, running, and cycling.
  • B. Indian Head Rail Trail
    Indian Head Rail Trail is a multi-use recreational path in Charles County, Maryland, converted from a former railroad corridor and popular for walking, running, and cycling.
  • C. Oro-Medonte Rail Trail
    The Oro-Medonte Rail Trail is a recreational multi-use trail in Oro-Medonte, Ontario, that follows a former railway corridor for activities like walking, cycling, and snowmobiling.
  • D. Iron Horse Regional Trail
    The Iron Horse Regional Trail is a multi-use, paved rail-trail in California’s East Bay that follows a former railroad corridor through several communities, including Danville.
  • E. 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.
  • 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_69ca8422ddf881908a3f8f876c9f53aa completed March 30, 2026, 2:09 p.m.
NER Named-entity recognition batch_69cd081fe8cc8190b6c1b481c7129689 completed April 1, 2026, 11:57 a.m.
NED1 Entity disambiguation (via context triple) batch_69d0b21d8f1081909b2493151fde4a5f completed April 4, 2026, 6:39 a.m.
NEDg Description generation batch_69d0b3234d088190a8ed13b4d4772fb5 completed April 4, 2026, 6:43 a.m.
NED2 Entity disambiguation (via description) batch_69d0b3bcd5548190ba1af3d0fa72780a completed April 4, 2026, 6:46 a.m.
Created at: March 30, 2026, 7:35 p.m.