Triple

T5729839
Position Surface form Disambiguated ID Type / Status
Subject Davis (MBTA station) E126352 entity
Predicate precedingStation P66132 FINISHED
Object Porter (MBTA station) E22835 NE FINISHED

How this triple was built (3 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: Porter (MBTA station) | Statement: [Davis (MBTA station), precedingStation, Porter (MBTA station)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Porter (MBTA station)
Context triple: [Davis (MBTA station), precedingStation, Porter (MBTA station)]
  • A. Porter (MBTA station) chosen
    Porter (MBTA station) is a transit station in Cambridge, Massachusetts, serving the MBTA Red Line subway and commuter rail with a notably deep underground platform.
  • B. Porter Square MBTA Red Line station
    Porter Square MBTA Red Line station is an underground rapid transit and commuter rail hub in Cambridge, Massachusetts, serving the MBTA Red Line and Fitchburg Line with access to the surrounding Porter Square commercial district.
  • C. Porter station
    Porter station is a major MBTA transit hub in Cambridge, Massachusetts, serving both Red Line subway and commuter rail trains beneath Porter Square.
  • D. Park Street MBTA station
    Park Street MBTA station is a major downtown Boston subway hub on the MBTA’s Green and Red Lines, located at the eastern edge of Boston Common.
  • E. MBTA Silver Hill station
    MBTA Silver Hill station is a small commuter rail stop on the Massachusetts Bay Transportation Authority’s Fitchburg Line serving the Silver Hill neighborhood of Weston, Massachusetts.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: precedingStation
Context triple: [Davis (MBTA station), precedingStation, Porter (MBTA station)]
  • A. precedingStationOnBlueLine
    Indicates that one station is immediately before another station along the Blue Line route.
  • B. adjacentStationFormerly
    Indicates that two stations were directly adjacent to each other in the past, but are no longer adjacent in the current network configuration.
  • C. previousStationOnLine1Northbound
    Indicates that one station is immediately before another station when traveling northbound on line 1.
  • D. precedingStationOnYellowLine
    Indicates that one station is immediately before another station along the Yellow Line in the direction of travel.
  • E. successorStation
    Indicates that one station directly follows another in a sequence, such as along a transit line or route.
  • 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_69c0082f723881908ce8bb13a0c0f8b7 completed March 22, 2026, 3:18 p.m.
NER Named-entity recognition batch_69c029014588819094a2a0f6f9b66bab completed March 22, 2026, 5:38 p.m.
NED1 Entity disambiguation (via context triple) batch_69c05a8cca748190b471c842fd2ce218 completed March 22, 2026, 9:09 p.m.
PD Predicate disambiguation batch_69c021c6488881909bed4a4534d57f70 completed March 22, 2026, 5:07 p.m.
PDg Predicate description generation batch_69c028fec2bc819083f5dca6a8d9d435 completed March 22, 2026, 5:38 p.m.
Created at: March 22, 2026, 3:47 p.m.