Triple

T11133555
Position Surface form Disambiguated ID Type / Status
Subject MBTA Commuter Rail Old Colony Lines E263349 entity
Predicate primaryTerminalCity P29923 FINISHED
Object Boston
Boston is the capital and largest city of Massachusetts, known for its pivotal role in American history, prestigious universities, and vibrant cultural and economic life in New England.
E906091 NE FINISHED

How this triple was built (5 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: Boston | Statement: [MBTA Commuter Rail Old Colony Lines, primaryTerminalCity, Boston]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Boston
Context triple: [MBTA Commuter Rail Old Colony Lines, primaryTerminalCity, Boston]
  • A. Boston
    Boston is a historic market town and port in Lincolnshire, England, known for its medieval church St Botolph's ("The Stump") and its role in early English Puritan emigration to America.
  • B. Boston
    Boston is a historic market town and port in Lincolnshire, England, known for its medieval church St Botolph's ("The Stump") and its role in the origins of the Pilgrim Fathers.
  • C. Boston
    Boston is a historic market and port town in Lincolnshire, England, known for its medieval church St Botolph's ("The Stump") and its role in early Puritan emigration to America.
  • D. Boston
    Boston is a World War II-era American light bomber aircraft, also known as the Douglas A-20 Havoc, used extensively by Allied air forces.
  • E. Boston
    Boston is a coastal municipality in the province of Davao Oriental on the island of Mindanao in the Philippines.
  • 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: Boston
Triple: [MBTA Commuter Rail Old Colony Lines, primaryTerminalCity, Boston]
Generated description
Boston is the capital and largest city of Massachusetts, known for its pivotal role in American history, prestigious universities, and vibrant cultural and economic life in New England.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Boston
Target entity description: Boston is the capital and largest city of Massachusetts, known for its pivotal role in American history, prestigious universities, and vibrant cultural and economic life in New England.
  • A. Boston chosen
    Boston is a historic coastal city in Massachusetts known for its leading universities, financial and biotech industries, and pivotal role in American history.
  • B. Boston
    Boston is a historic market town and port in Lincolnshire, England, known for its medieval church St Botolph's ("The Stump") and its role in the origins of the Pilgrim Fathers.
  • C. Boston
    Boston is a historic market town and port in Lincolnshire, England, known for its medieval church St Botolph's ("The Stump") and its role in early English Puritan emigration to America.
  • D. Boston
    Boston is a historic market and port town in Lincolnshire, England, known for its medieval church St Botolph's ("The Stump") and its role in early Puritan emigration to America.
  • E. Boston
    Boston is a coastal municipality in the province of Davao Oriental on the island of Mindanao in the Philippines.
  • F. None of above.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: primaryTerminalCity
Context triple: [MBTA Commuter Rail Old Colony Lines, primaryTerminalCity, Boston]
  • A. primaryCity
    Indicates that one city serves as the main or most important city associated with a given region, entity, or context.
  • B. primaryTerminalFor chosen
    Indicates that one entity serves as the main or principal terminal associated with another entity.
  • C. previousPrimaryAirportFor
    Indicates that one airport was formerly the main or primary airport serving a particular location or entity before being replaced by another.
  • D. primaryCityAtOtherEnd
    Indicates that a given city is the main or principal city located at the opposite end of a specified route, connection, or relationship from another city.
  • E. primaryUseCity
    Indicates that a city is the main or principal location where something (such as a service, facility, or entity) is primarily used or operates.
  • F. None of above.

Provenance (6 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_69d6aa9c0ba08190bbd19c217489b755 completed April 8, 2026, 7:21 p.m.
NER Named-entity recognition batch_69d7e8347a248190837e8c26f25f553a completed April 9, 2026, 5:56 p.m.
NED1 Entity disambiguation (via context triple) batch_69e4ace2228c8190936757f5b1eaa1eb completed April 19, 2026, 10:22 a.m.
NEDg Description generation batch_69e4b12c04e48190ad7546d556a5109f completed April 19, 2026, 10:40 a.m.
NED2 Entity disambiguation (via description) batch_69e4b2949c7c8190820b7f1f87e00602 completed April 19, 2026, 10:46 a.m.
PD Predicate disambiguation batch_69d75ce104908190b6cc31ef2f67846a completed April 9, 2026, 8:01 a.m.
Created at: April 8, 2026, 9:28 p.m.