Triple
T19919899
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Mt. Lebanon station |
E478761
|
entity |
| Predicate | isInTunnel |
P40851
|
FINISHED |
| Object |
Mt. Lebanon Tunnel
Mt. Lebanon Tunnel is a light rail transit tunnel in the Pittsburgh, Pennsylvania area that carries the Port Authority’s Red Line beneath the suburb of Mt. Lebanon.
|
E1401897
|
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: Mt. Lebanon Tunnel | Statement: [Mt. Lebanon station, isInTunnel, Mt. Lebanon Tunnel]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Mt. Lebanon Tunnel Context triple: [Mt. Lebanon station, isInTunnel, Mt. Lebanon Tunnel]
-
A.
Summit Tunnel
Summit Tunnel is a historic railway tunnel in northern England, renowned as one of the earliest and longest major railway tunnels built during the early Victorian era.
-
B.
Summit Tunnel
Summit Tunnel is a historic railroad tunnel driven through the Sierra Nevada in California, notable for its challenging 19th-century construction as part of the First Transcontinental Railroad.
-
C.
Kingwood Tunnel
Kingwood Tunnel is a historic railroad tunnel in West Virginia that was once among the longest in the United States and played a key role in 19th-century rail transportation.
-
D.
Sumner Tunnel
The Sumner Tunnel is a major vehicular tunnel in Boston that carries traffic under Boston Harbor between East Boston and downtown.
-
E.
Clyde Tunnel
The Clyde Tunnel is a road tunnel in Glasgow, Scotland, carrying vehicular traffic beneath the River Clyde to connect the city’s north and south banks.
- 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: Mt. Lebanon Tunnel Triple: [Mt. Lebanon station, isInTunnel, Mt. Lebanon Tunnel]
Generated description
Mt. Lebanon Tunnel is a light rail transit tunnel in the Pittsburgh, Pennsylvania area that carries the Port Authority’s Red Line beneath the suburb of Mt. Lebanon.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Mt. Lebanon Tunnel Target entity description: Mt. Lebanon Tunnel is a light rail transit tunnel in the Pittsburgh, Pennsylvania area that carries the Port Authority’s Red Line beneath the suburb of Mt. Lebanon.
-
A.
Summit Tunnel
Summit Tunnel is a historic railroad tunnel driven through the Sierra Nevada in California, notable for its challenging 19th-century construction as part of the First Transcontinental Railroad.
-
B.
Summit Tunnel
Summit Tunnel is a historic railway tunnel in northern England, renowned as one of the earliest and longest major railway tunnels built during the early Victorian era.
-
C.
Kingwood Tunnel
Kingwood Tunnel is a historic railroad tunnel in West Virginia that was once among the longest in the United States and played a key role in 19th-century rail transportation.
-
D.
Sumner Tunnel
The Sumner Tunnel is a major vehicular tunnel in Boston that carries traffic under Boston Harbor between East Boston and downtown.
-
E.
Clyde Tunnel
The Clyde Tunnel is a road tunnel in Glasgow, Scotland, carrying vehicular traffic beneath the River Clyde to connect the city’s north and south banks.
- 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_69d8e521855c8190b41871700afc8d6a |
completed | April 10, 2026, 11:55 a.m. |
| NER | Named-entity recognition | batch_69e659c49d408190b3a42bada3675133 |
completed | April 20, 2026, 4:52 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a07ea54913c8190be1143c1f0a11082 |
completed | May 16, 2026, 3:53 a.m. |
| NEDg | Description generation | batch_6a07f07d33bc8190b0de5dcce7f77e7d |
completed | May 16, 2026, 4:20 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a07f0ec7d488190991914918a3940eb |
completed | May 16, 2026, 4:22 a.m. |
Created at: April 10, 2026, 1:53 p.m.