Triple
T8041041
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Cheltenham Avenue (north end) |
E187438
|
entity |
| Predicate | relatedTo |
P37
|
FINISHED |
| Object |
Broad Street Line (Philadelphia subway) terminus area
The Broad Street Line (Philadelphia subway) terminus area is the northern endpoint of SEPTA’s primary north–south rapid transit route in Philadelphia, where trains turn around near the city’s border with Cheltenham Township.
|
E706704
|
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: Broad Street Line (Philadelphia subway) terminus area | Statement: [Cheltenham Avenue (north end), relatedTo, Broad Street Line (Philadelphia subway) terminus area]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Broad Street Line (Philadelphia subway) terminus area Context triple: [Cheltenham Avenue (north end), relatedTo, Broad Street Line (Philadelphia subway) terminus area]
-
A.
Broad Street Line Walnut–Locust station
Broad Street Line Walnut–Locust station is an underground SEPTA subway station in Center City Philadelphia serving the Broad Street Line near the city’s theater and cultural district.
-
B.
Broad Street Station (Philadelphia)
Broad Street Station (Philadelphia) was a grand former railroad terminal in Center City Philadelphia that served as the Pennsylvania Railroad’s primary passenger station and a major hub of rail travel in the late 19th and early 20th centuries.
-
C.
City Hall Station (Philadelphia)
City Hall Station (Philadelphia) is a major underground transit hub in Center City that serves as a key interchange point for multiple SEPTA subway and trolley lines beneath Philadelphia’s City Hall.
-
D.
Erie station (Broad Street Line)
Erie station (Broad Street Line) is a rapid transit station on SEPTA's Broad Street Line in Philadelphia, Pennsylvania.
-
E.
Girard station (Broad Street Line)
Girard station (Broad Street Line) is an underground rapid transit station in Philadelphia, Pennsylvania, located along SEPTA’s Broad Street Line near the intersection of Girard Avenue and Broad Street.
- 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: Broad Street Line (Philadelphia subway) terminus area Triple: [Cheltenham Avenue (north end), relatedTo, Broad Street Line (Philadelphia subway) terminus area]
Generated description
The Broad Street Line (Philadelphia subway) terminus area is the northern endpoint of SEPTA’s primary north–south rapid transit route in Philadelphia, where trains turn around near the city’s border with Cheltenham Township.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Broad Street Line (Philadelphia subway) terminus area Target entity description: The Broad Street Line (Philadelphia subway) terminus area is the northern endpoint of SEPTA’s primary north–south rapid transit route in Philadelphia, where trains turn around near the city’s border with Cheltenham Township.
-
A.
Broad Street Line Walnut–Locust station
Broad Street Line Walnut–Locust station is an underground SEPTA subway station in Center City Philadelphia serving the Broad Street Line near the city’s theater and cultural district.
-
B.
Broad Street Station (Philadelphia)
Broad Street Station (Philadelphia) was a grand former railroad terminal in Center City Philadelphia that served as the Pennsylvania Railroad’s primary passenger station and a major hub of rail travel in the late 19th and early 20th centuries.
-
C.
City Hall Station (Philadelphia)
City Hall Station (Philadelphia) is a major underground transit hub in Center City that serves as a key interchange point for multiple SEPTA subway and trolley lines beneath Philadelphia’s City Hall.
-
D.
Erie station (Broad Street Line)
Erie station (Broad Street Line) is a rapid transit station on SEPTA's Broad Street Line in Philadelphia, Pennsylvania.
-
E.
Girard station (Broad Street Line)
Girard station (Broad Street Line) is an underground rapid transit station in Philadelphia, Pennsylvania, located along SEPTA’s Broad Street Line near the intersection of Girard Avenue and Broad Street.
- 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_69ca82b00cb48190b59a300f70e97bd7 |
completed | March 30, 2026, 2:03 p.m. |
| NER | Named-entity recognition | batch_69cb3f1d62c48190bf4a6cd17517c5dc |
completed | March 31, 2026, 3:27 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cc5706a4a881909758ea34cf5c0cf2 |
completed | March 31, 2026, 11:21 p.m. |
| NEDg | Description generation | batch_69cc58abd96c8190ab9eeaece67d5408 |
completed | March 31, 2026, 11:28 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69cc5cc9161c8190aae90f453f6d98c0 |
completed | March 31, 2026, 11:46 p.m. |
Created at: March 30, 2026, 5:23 p.m.