Triple
T145869
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | CharlieCard |
E3327
|
entity |
| Predicate | replacedBy |
P101
|
FINISHED |
| Object |
MBTA contactless fare system "AFC 2.0" (planned)
The MBTA contactless fare system "AFC 2.0" is a planned modern payment platform for Boston’s transit network that will allow riders to tap in with contactless cards, smartphones, and other devices across all modes of service.
|
E17394
|
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 contactless fare system "AFC 2.0" (planned) | Statement: [CharlieCard, replacedBy, MBTA contactless fare system "AFC 2.0" (planned)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MBTA contactless fare system "AFC 2.0" (planned) Context triple: [CharlieCard, replacedBy, MBTA contactless fare system "AFC 2.0" (planned)]
-
A.
SmarTrip
SmarTrip is a rechargeable contactless smart card used to pay fares on the Washington, D.C. region’s public transit systems.
-
B.
MetroCard
MetroCard is a magnetic stripe payment card formerly used as the primary method for paying fares on New York City’s public transit system, including subways and buses.
-
C.
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.
-
D.
MetroAccess
MetroAccess is a paratransit service providing door-to-door transportation for people with disabilities in the Washington, D.C. metropolitan area.
-
E.
TAP card
The TAP card is a reusable contactless smart card used to pay fares across public transit systems in the Los Angeles County region.
- 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 contactless fare system "AFC 2.0" (planned) Triple: [CharlieCard, replacedBy, MBTA contactless fare system "AFC 2.0" (planned)]
Generated description
The MBTA contactless fare system "AFC 2.0" is a planned modern payment platform for Boston’s transit network that will allow riders to tap in with contactless cards, smartphones, and other devices across all modes of service.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MBTA contactless fare system "AFC 2.0" (planned) Target entity description: The MBTA contactless fare system "AFC 2.0" is a planned modern payment platform for Boston’s transit network that will allow riders to tap in with contactless cards, smartphones, and other devices across all modes of service.
-
A.
SmarTrip
SmarTrip is a rechargeable contactless smart card used to pay fares on the Washington, D.C. region’s public transit systems.
-
B.
MetroCard
MetroCard is a magnetic stripe payment card formerly used as the primary method for paying fares on New York City’s public transit system, including subways and buses.
-
C.
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.
-
D.
MetroAccess
MetroAccess is a paratransit service providing door-to-door transportation for people with disabilities in the Washington, D.C. metropolitan area.
-
E.
TAP card
The TAP card is a reusable contactless smart card used to pay fares across public transit systems in the Los Angeles County region.
- 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_69a252868de4819080e21c9938bfe8b6 |
completed | Feb. 28, 2026, 2:27 a.m. |
| NER | Named-entity recognition | batch_69a257ea7eac8190884a53453a9e0dd6 |
completed | Feb. 28, 2026, 2:50 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a2c2763ce481908c12046de9003a84 |
completed | Feb. 28, 2026, 10:24 a.m. |
| NEDg | Description generation | batch_69a2c2f02810819092e3263ac91b5fe3 |
completed | Feb. 28, 2026, 10:26 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a2c369498481908c4213b04aea9c97 |
completed | Feb. 28, 2026, 10:28 a.m. |
Created at: Feb. 28, 2026, 2:31 a.m.