Triple

T15420989
Position Surface form Disambiguated ID Type / Status
Subject MBTA Riverside parking lot E369374 entity
Predicate partOf P40 FINISHED
Object MBTA park-and-ride network
The MBTA park-and-ride network is a system of parking facilities at transit stations that allows commuters to park their vehicles and transfer to Boston-area public transportation services.
E1159584 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: MBTA park-and-ride network | Statement: [MBTA Riverside parking lot, partOf, MBTA park-and-ride network]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: MBTA park-and-ride network
Context triple: [MBTA Riverside parking lot, partOf, MBTA park-and-ride network]
  • A. 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.
  • B. MBTA rapid transit zone
    The MBTA rapid transit zone is the fare and service area designation used by Boston’s subway and light rail system to organize routes, stops, and pricing within the Massachusetts Bay Transportation Authority network.
  • C. MBTA commuter rail terminals
    MBTA commuter rail terminals are major passenger rail hubs in the Boston area that serve as endpoints and transfer points for regional trains connecting the city with its surrounding suburbs and communities.
  • D. MBTA Commuter Rail stations
    MBTA Commuter Rail stations are passenger rail stops in the Greater Boston area that provide regional train service connecting outlying communities with Boston and other destinations on the Massachusetts Bay Transportation Authority network.
  • E. MBTA
    MBTA is a landmark U.S. federal law enacted in 1918 that protects migratory bird species by prohibiting their unauthorized capture, killing, or trade.
  • 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: MBTA park-and-ride network
Triple: [MBTA Riverside parking lot, partOf, MBTA park-and-ride network]
Generated description
The MBTA park-and-ride network is a system of parking facilities at transit stations that allows commuters to park their vehicles and transfer to Boston-area public transportation services.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: MBTA park-and-ride network
Target entity description: The MBTA park-and-ride network is a system of parking facilities at transit stations that allows commuters to park their vehicles and transfer to Boston-area public transportation services.
  • A. 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.
  • B. MBTA rapid transit zone
    The MBTA rapid transit zone is the fare and service area designation used by Boston’s subway and light rail system to organize routes, stops, and pricing within the Massachusetts Bay Transportation Authority network.
  • C. MBTA commuter rail terminals
    MBTA commuter rail terminals are major passenger rail hubs in the Boston area that serve as endpoints and transfer points for regional trains connecting the city with its surrounding suburbs and communities.
  • D. MBTA Commuter Rail stations
    MBTA Commuter Rail stations are passenger rail stops in the Greater Boston area that provide regional train service connecting outlying communities with Boston and other destinations on the Massachusetts Bay Transportation Authority network.
  • E. MBTA
    The MBTA (Massachusetts Bay Transportation Authority) is the public transit agency that operates subway, bus, commuter rail, and ferry services in the Greater Boston area.
  • 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_69d85a1849f48190bf898068b2806fae completed April 10, 2026, 2:02 a.m.
NER Named-entity recognition batch_69e03ebe7b1081908e6b9e6e128a8d5d completed April 16, 2026, 1:43 a.m.
NED1 Entity disambiguation (via context triple) batch_69ff2cf5d788819086a94af42c2ec21a completed May 9, 2026, 12:47 p.m.
NEDg Description generation batch_69ff2e4010dc8190b0f81d03acf8ba41 completed May 9, 2026, 12:53 p.m.
NED2 Entity disambiguation (via description) batch_69ff310c2d5c819093295c45307176ec completed May 9, 2026, 1:05 p.m.
Created at: April 10, 2026, 3:20 a.m.