Triple

T10527003
Position Surface form Disambiguated ID Type / Status
Subject Tiburon, California, United States E248331 entity
Predicate hasTrail P3625 FINISHED
Object Old Rail Trail
Old Rail Trail is a scenic multi-use path in Tiburon, California, that follows a former railroad corridor along the San Francisco Bay shoreline.
 E869479 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 | Statement: [Tiburon, California, United States, hasTrail, Old Rail Trail]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Old Rail Trail
Context triple: [Tiburon, California, United States, hasTrail, Old Rail Trail]
  • 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. 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.
  • D. 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.
  • 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
Triple: [Tiburon, California, United States, hasTrail, Old Rail Trail]
Generated description
Old Rail Trail is a scenic multi-use path in Tiburon, California, that follows a former railroad corridor along the San Francisco Bay shoreline.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Old Rail Trail
Target entity description: Old Rail Trail is a scenic multi-use path in Tiburon, California, that follows a former railroad corridor along the San Francisco Bay shoreline.
  • 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. 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.
  • D. 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.
  • 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_69d381c5c7448190bec34bee7ec72bac completed April 6, 2026, 9:49 a.m.
NER Named-entity recognition batch_69d509f5ec348190875c8c877e70ba4a completed April 7, 2026, 1:43 p.m.
NED1 Entity disambiguation (via context triple) batch_69d90e31350c8190a7493cdc33cc450a completed April 10, 2026, 2:50 p.m.
NEDg Description generation batch_69d9107e8b94819086ebba1675a0db54 completed April 10, 2026, 3 p.m.
NED2 Entity disambiguation (via description) batch_69d911a16b1481909197b00c30de48c4 completed April 10, 2026, 3:05 p.m.
Created at: April 6, 2026, 12:29 p.m.