Triple
T2980320
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Science Park station |
E80492
|
entity |
| Predicate | locatedOn |
P40
|
FINISHED |
| Object |
Lechmere Viaduct
Lechmere Viaduct is a historic concrete arch bridge in Boston that carries MBTA Green Line trains across the Charles River between Boston and Cambridge.
|
E356202
|
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: Lechmere Viaduct | Statement: [Science Park station, locatedOn, Lechmere Viaduct]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Lechmere Viaduct Context triple: [Science Park station, locatedOn, Lechmere Viaduct]
-
A.
Goyt Viaduct
Goyt Viaduct is a historic railway viaduct in Derbyshire, England, carrying tracks high over the River Goyt as part of the former Midland Railway route.
-
B.
Boyne Viaduct
Boyne Viaduct is a historic 19th-century railway bridge in Drogheda, Ireland, renowned for its impressive multi-arch design and key role on the Dublin–Belfast rail line.
-
C.
Digswell Viaduct
Digswell Viaduct is a prominent 19th-century railway viaduct in Hertfordshire, England, known for its long brick arches carrying trains high above the River Mimram and surrounding countryside.
-
D.
Leatherhead Bridge
Leatherhead Bridge is a historic road bridge spanning the River Mole in Leatherhead, Surrey, England.
-
E.
John Frost Bridge
The John Frost Bridge is a historically significant road bridge in Arnhem, Netherlands, best known as a key battle site during Operation Market Garden in World War II.
- 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: Lechmere Viaduct Triple: [Science Park station, locatedOn, Lechmere Viaduct]
Generated description
Lechmere Viaduct is a historic concrete arch bridge in Boston that carries MBTA Green Line trains across the Charles River between Boston and Cambridge.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Lechmere Viaduct Target entity description: Lechmere Viaduct is a historic concrete arch bridge in Boston that carries MBTA Green Line trains across the Charles River between Boston and Cambridge.
-
A.
Goyt Viaduct
Goyt Viaduct is a historic railway viaduct in Derbyshire, England, carrying tracks high over the River Goyt as part of the former Midland Railway route.
-
B.
Boyne Viaduct
Boyne Viaduct is a historic 19th-century railway bridge in Drogheda, Ireland, renowned for its impressive multi-arch design and key role on the Dublin–Belfast rail line.
-
C.
Digswell Viaduct
Digswell Viaduct is a prominent 19th-century railway viaduct in Hertfordshire, England, known for its long brick arches carrying trains high above the River Mimram and surrounding countryside.
-
D.
Leatherhead Bridge
Leatherhead Bridge is a historic road bridge spanning the River Mole in Leatherhead, Surrey, England.
-
E.
John Frost Bridge
The John Frost Bridge is a historically significant road bridge in Arnhem, Netherlands, best known as a key battle site during Operation Market Garden in World War II.
- 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_69ad8b15f6ac8190be5fd16a33edcb4f |
completed | March 8, 2026, 2:43 p.m. |
| NER | Named-entity recognition | batch_69ad999e91788190a2d430dd0600a660 |
completed | March 8, 2026, 3:45 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b354505574819083ae7d36e461366b |
completed | March 13, 2026, 12:03 a.m. |
| NEDg | Description generation | batch_69b35546dfa0819081800009fbe8afe3 |
completed | March 13, 2026, 12:07 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b355cecc4c81908ecb5f83e89b4a00 |
completed | March 13, 2026, 12:09 a.m. |
Created at: March 8, 2026, 2:58 p.m.