Triple
T1257418
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Union Station, Toronto |
E12424
|
entity |
| Predicate | connectedTo |
P37
|
FINISHED |
| Object |
Line 3 Union–Pearson Express
Line 3 Union–Pearson Express is a dedicated airport rail link in Toronto that provides rapid transit service between Union Station in downtown and Toronto Pearson International Airport.
|
E143066
|
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: Line 3 Union–Pearson Express | Statement: [Union Station, Toronto, connectedTo, Line 3 Union–Pearson Express]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Line 3 Union–Pearson Express Context triple: [Union Station, Toronto, connectedTo, Line 3 Union–Pearson Express]
-
A.
Center City Commuter Connection
The Center City Commuter Connection is an underground rail tunnel in downtown Philadelphia that links formerly separate commuter rail lines into a unified through-running system.
-
B.
Newark Light Rail
Newark Light Rail is a light rail transit system serving the city of Newark, New Jersey, connecting downtown, residential neighborhoods, and key regional transit hubs.
-
C.
Hudson–Bergen Light Rail
The Hudson–Bergen Light Rail is a modern light rail transit system serving waterfront communities and urban centers in Hudson County, New Jersey, providing frequent local service along the Hudson River corridor.
-
D.
Hudson Line
The Hudson Line is a major passenger rail route running along the east bank of the Hudson River in New York, serving both commuter and intercity trains between New York City and points upstate.
-
E.
Suburban Line
The Suburban Line is a commuter rail service of the Beijing Subway system that connects the city center with outlying suburban districts.
- 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: Line 3 Union–Pearson Express Triple: [Union Station, Toronto, connectedTo, Line 3 Union–Pearson Express]
Generated description
Line 3 Union–Pearson Express is a dedicated airport rail link in Toronto that provides rapid transit service between Union Station in downtown and Toronto Pearson International Airport.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Line 3 Union–Pearson Express Target entity description: Line 3 Union–Pearson Express is a dedicated airport rail link in Toronto that provides rapid transit service between Union Station in downtown and Toronto Pearson International Airport.
-
A.
Center City Commuter Connection
The Center City Commuter Connection is an underground rail tunnel in downtown Philadelphia that links formerly separate commuter rail lines into a unified through-running system.
-
B.
Newark Light Rail
Newark Light Rail is a light rail transit system serving the city of Newark, New Jersey, connecting downtown, residential neighborhoods, and key regional transit hubs.
-
C.
Hudson–Bergen Light Rail
The Hudson–Bergen Light Rail is a modern light rail transit system serving waterfront communities and urban centers in Hudson County, New Jersey, providing frequent local service along the Hudson River corridor.
-
D.
Hudson Line
The Hudson Line is a major passenger rail route running along the east bank of the Hudson River in New York, serving both commuter and intercity trains between New York City and points upstate.
-
E.
Suburban Line
The Suburban Line is a commuter rail service of the Beijing Subway system that connects the city center with outlying suburban districts.
- 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_69a4933352e08190ac617291985e76c0 |
completed | March 1, 2026, 7:27 p.m. |
| NER | Named-entity recognition | batch_69a4bfa8cfa08190ac49c437a94a843c |
completed | March 1, 2026, 10:37 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ac93cdba808190b7d164bb98efe3dc |
completed | March 7, 2026, 9:08 p.m. |
| NEDg | Description generation | batch_69ac94c0e6548190a2d40e3ac1a279ce |
completed | March 7, 2026, 9:12 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ac9531c2f08190b570fcb7b035ea87 |
completed | March 7, 2026, 9:14 p.m. |
Created at: March 1, 2026, 7:50 p.m.