Triple
T18248343
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | CTA 2200-series railcars |
E437012
|
entity |
| Predicate | usedOnLine |
P15252
|
FINISHED |
| Object |
Lake-Dan Ryan service (early years)
Lake-Dan Ryan service (early years) was an early configuration of Chicago's 'L' rapid transit operations that combined the Lake Street and Dan Ryan branches into a through-routed line.
|
E1314505
|
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: Lake-Dan Ryan service (early years) | Statement: [CTA 2200-series railcars, usedOnLine, Lake-Dan Ryan service (early years)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Lake-Dan Ryan service (early years) Context triple: [CTA 2200-series railcars, usedOnLine, Lake-Dan Ryan service (early years)]
-
A.
Ryan Lake
Ryan Lake is a small recreational lake located in the city of Robbinsdale, Minnesota.
-
B.
Green Line Lake Branch
The Green Line Lake Branch is a rapid transit line of the Chicago "L" system that runs west from downtown Chicago to the city's West Side and western suburbs.
-
C.
Hamilton Lakes
Hamilton Lakes are a pair of scenic alpine lakes in California’s Sequoia National Park, popular with backpackers for their dramatic granite surroundings and clear mountain waters.
-
D.
Todd Lake
Todd Lake is a scenic alpine lake in central Oregon’s Cascade Range, popular for hiking, fishing, and wildflower viewing.
-
E.
Lakeshore
Lakeshore is a town in southwestern Ontario, Canada, situated along the shores of Lake St. Clair just east of Windsor.
- 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: Lake-Dan Ryan service (early years) Triple: [CTA 2200-series railcars, usedOnLine, Lake-Dan Ryan service (early years)]
Generated description
Lake-Dan Ryan service (early years) was an early configuration of Chicago's 'L' rapid transit operations that combined the Lake Street and Dan Ryan branches into a through-routed line.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Lake-Dan Ryan service (early years) Target entity description: Lake-Dan Ryan service (early years) was an early configuration of Chicago's 'L' rapid transit operations that combined the Lake Street and Dan Ryan branches into a through-routed line.
-
A.
Ryan Lake
Ryan Lake is a small recreational lake located in the city of Robbinsdale, Minnesota.
-
B.
Green Line Lake Branch
The Green Line Lake Branch is a rapid transit line of the Chicago "L" system that runs west from downtown Chicago to the city's West Side and western suburbs.
-
C.
Hamilton Lakes
Hamilton Lakes are a pair of scenic alpine lakes in California’s Sequoia National Park, popular with backpackers for their dramatic granite surroundings and clear mountain waters.
-
D.
Todd Lake
Todd Lake is a scenic alpine lake in central Oregon’s Cascade Range, popular for hiking, fishing, and wildflower viewing.
-
E.
Lakeshore
Lakeshore is a town in southwestern Ontario, Canada, situated along the shores of Lake St. Clair just east of Windsor.
- 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_69d8b91104e08190a8241f7d260a5162 |
completed | April 10, 2026, 8:47 a.m. |
| NER | Named-entity recognition | batch_69e4f7e89b288190a286797ec2cd60a8 |
completed | April 19, 2026, 3:42 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a03ac75d38c8190a198e8b1868f6621 |
completed | May 12, 2026, 10:40 p.m. |
| NEDg | Description generation | batch_6a03ad4d5bcc8190a5e065a5bb897400 |
completed | May 12, 2026, 10:44 p.m. |
| NED2 | Entity disambiguation (via description) | batch_6a03af1fb1e0819095c9e8cb5528ce30 |
completed | May 12, 2026, 10:52 p.m. |
Created at: April 10, 2026, 10:33 a.m.