Triple
T2383544
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Green Line (MBTA) |
E46364
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object |
Greater Boston public transportation network
The Greater Boston public transportation network is the MBTA-operated system of subways, light rail, buses, commuter rail, and ferries that serves Boston and its surrounding communities.
|
E30305
|
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: Greater Boston public transportation network | Statement: [Green Line (MBTA), partOf, Greater Boston public transportation network]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Greater Boston public transportation network Context triple: [Green Line (MBTA), partOf, Greater Boston public transportation network]
-
A.
Philadelphia commuter rail network
The Philadelphia commuter rail network is a regional passenger rail system serving the greater Philadelphia area, primarily operated by SEPTA and connecting the city with its surrounding suburbs.
-
B.
Greater Boston parkway system
The Greater Boston parkway system is a network of scenic, historically planned roadways and parkways around Boston designed to connect urban areas with parks, beaches, and natural landscapes.
-
C.
MBTA Commuter Rail network
The MBTA Commuter Rail network is a regional passenger rail system serving Greater Boston and surrounding communities in Massachusetts and parts of Rhode Island.
-
D.
Greater Boston
Greater Boston is the metropolitan region centered on the city of Boston, Massachusetts, encompassing numerous surrounding cities and towns and serving as a major hub for education, technology, and culture in New England.
-
E.
MBTA bus network
The MBTA bus network is the system of public bus routes serving Cambridge and the greater Boston area as part of the Massachusetts Bay Transportation Authority’s regional transit services.
- 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: Greater Boston public transportation network Triple: [Green Line (MBTA), partOf, Greater Boston public transportation network]
Generated description
The Greater Boston public transportation network is the MBTA-operated system of subways, light rail, buses, commuter rail, and ferries that serves Boston and its surrounding communities.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Greater Boston public transportation network Target entity description: The Greater Boston public transportation network is the MBTA-operated system of subways, light rail, buses, commuter rail, and ferries that serves Boston and its surrounding communities.
-
A.
Philadelphia commuter rail network
The Philadelphia commuter rail network is a regional passenger rail system serving the greater Philadelphia area, primarily operated by SEPTA and connecting the city with its surrounding suburbs.
-
B.
Greater Boston parkway system
The Greater Boston parkway system is a network of scenic, historically planned roadways and parkways around Boston designed to connect urban areas with parks, beaches, and natural landscapes.
-
C.
MBTA Commuter Rail network
chosen
The MBTA Commuter Rail network is a regional passenger rail system serving Greater Boston and surrounding communities in Massachusetts and parts of Rhode Island.
-
D.
Greater Boston
Greater Boston is the metropolitan region centered on the city of Boston, Massachusetts, encompassing numerous surrounding cities and towns and serving as a major hub for education, technology, and culture in New England.
-
E.
MBTA bus network
The MBTA bus network is the system of public bus routes serving Cambridge and the greater Boston area as part of the Massachusetts Bay Transportation Authority’s regional transit services.
- F. None of above.
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_69a88a1554a48190a0180682bcf099be |
completed | March 4, 2026, 7:37 p.m. |
| NER | Named-entity recognition | batch_69abc7bafa248190a68e8f1e081f4817 |
completed | March 7, 2026, 6:37 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69aea8b790bc8190ba399e252acec750 |
completed | March 9, 2026, 11:02 a.m. |
| NEDg | Description generation | batch_69aeabb22c708190898b44cdd8b97ff6 |
completed | March 9, 2026, 11:14 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69aeac141ca88190a9a91d0f5b25c341 |
completed | March 9, 2026, 11:16 a.m. |
Created at: March 4, 2026, 7:57 p.m.