Triple
T33109604
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | former Pennsylvania Railroad Chestnut Hill Branch |
E847290
|
entity |
| Predicate | railwaySystem |
P522
|
FINISHED |
| Object |
Pennsylvania Railroad suburban network
The Pennsylvania Railroad suburban network was an extensive system of commuter rail lines serving the Philadelphia metropolitan area, forming one of the earliest and most heavily used suburban rail operations in the United States.
|
E77222
|
NE FINISHED |
How this triple was built (2 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: Pennsylvania Railroad suburban network | Statement: [former Pennsylvania Railroad Chestnut Hill Branch, railwaySystem, Pennsylvania Railroad suburban network]
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: Pennsylvania Railroad suburban network Triple: [former Pennsylvania Railroad Chestnut Hill Branch, railwaySystem, Pennsylvania Railroad suburban network]
Generated description
The Pennsylvania Railroad suburban network was an extensive system of commuter rail lines serving the Philadelphia metropolitan area, forming one of the earliest and most heavily used suburban rail operations in the United States.
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_69f3495686508190b76bf20fa5e00bf7 |
completed | April 30, 2026, 12:21 p.m. |
| NER | Named-entity recognition | batch_69f6d6e96b6481908a449b8a4b0f8693 |
completed | May 3, 2026, 5:02 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a34f034d3c48190a38225696325dbac |
completed | June 19, 2026, 7:31 a.m. |
| NEDg | Description generation | batch_6a34f51a14ec8190a60c715838742ea9 |
completed | June 19, 2026, 7:51 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a34f59441c08190a306eb2fcfecfe74 |
completed | June 19, 2026, 7:53 a.m. |
Created at: May 1, 2026, 1:27 a.m.