Triple
T5541734
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | City of Pittsburgh park system |
E145304
|
entity |
| Predicate | hasPart |
P35
|
FINISHED |
| Object |
Three Rivers Heritage Trail segments within Pittsburgh
The Three Rivers Heritage Trail segments within Pittsburgh are a network of multi-use riverfront paths that provide recreational access and scenic connections along the city’s three rivers.
|
E528163
|
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: Three Rivers Heritage Trail segments within Pittsburgh | Statement: [City of Pittsburgh park system, hasPart, Three Rivers Heritage Trail segments within Pittsburgh]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Three Rivers Heritage Trail segments within Pittsburgh Context triple: [City of Pittsburgh park system, hasPart, Three Rivers Heritage Trail segments within Pittsburgh]
-
A.
Allegheny River waterfront
The Allegheny River waterfront is a stretch of riverfront along the Allegheny River featuring recreational, scenic, and community spaces in and around New Kensington, Pennsylvania.
-
B.
Schuylkill River Trail
The Schuylkill River Trail is a popular multi-use recreational path in southeastern Pennsylvania that follows the Schuylkill River, offering scenic routes for walking, running, and cycling through urban and natural landscapes.
-
C.
Tri-Cities regional trail network
The Tri-Cities regional trail network is an interconnected system of recreational trails in Washington’s Tri-Cities area that links natural areas, parks, and preserves for hiking, biking, and outdoor access.
-
D.
City of Pittsburgh park system
The City of Pittsburgh park system is a network of public parks and green spaces that provide recreation, conservation areas, and cultural amenities throughout Pittsburgh, Pennsylvania.
-
E.
Bethesda Trolley Trail
The Bethesda Trolley Trail is a multi-use urban trail in Montgomery County, Maryland, that follows a former trolley line and connects Bethesda to surrounding communities 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: Three Rivers Heritage Trail segments within Pittsburgh Triple: [City of Pittsburgh park system, hasPart, Three Rivers Heritage Trail segments within Pittsburgh]
Generated description
The Three Rivers Heritage Trail segments within Pittsburgh are a network of multi-use riverfront paths that provide recreational access and scenic connections along the city’s three rivers.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Three Rivers Heritage Trail segments within Pittsburgh Target entity description: The Three Rivers Heritage Trail segments within Pittsburgh are a network of multi-use riverfront paths that provide recreational access and scenic connections along the city’s three rivers.
-
A.
Allegheny River waterfront
The Allegheny River waterfront is a stretch of riverfront along the Allegheny River featuring recreational, scenic, and community spaces in and around New Kensington, Pennsylvania.
-
B.
Schuylkill River Trail
The Schuylkill River Trail is a popular multi-use recreational path in southeastern Pennsylvania that follows the Schuylkill River, offering scenic routes for walking, running, and cycling through urban and natural landscapes.
-
C.
Tri-Cities regional trail network
The Tri-Cities regional trail network is an interconnected system of recreational trails in Washington’s Tri-Cities area that links natural areas, parks, and preserves for hiking, biking, and outdoor access.
-
D.
City of Pittsburgh park system
The City of Pittsburgh park system is a network of public parks and green spaces that provide recreation, conservation areas, and cultural amenities throughout Pittsburgh, Pennsylvania.
-
E.
Bethesda Trolley Trail
The Bethesda Trolley Trail is a multi-use urban trail in Montgomery County, Maryland, that follows a former trolley line and connects Bethesda to surrounding communities 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_69c008fa64888190adae56c8f9ea4031 |
completed | March 22, 2026, 3:21 p.m. |
| NER | Named-entity recognition | batch_69c01fc7e26481908cec8d0483170ea5 |
completed | March 22, 2026, 4:58 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c0281fb73881909df8e4f98b27ce1e |
completed | March 22, 2026, 5:34 p.m. |
| NEDg | Description generation | batch_69c033df2c7881909660eb931908318c |
completed | March 22, 2026, 6:24 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69c034640cd081909b44ff23e9005e57 |
completed | March 22, 2026, 6:26 p.m. |
Created at: March 22, 2026, 3:35 p.m.