Triple
T4302870
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | North Hollywood station |
E99880
|
entity |
| Predicate | isPartOfProject |
P14971
|
FINISHED |
| Object |
Metro Red Line extension to North Hollywood
The Metro Red Line extension to North Hollywood is a Los Angeles County Metro Rail project that expanded the subway’s reach into the San Fernando Valley, making North Hollywood a major regional transit hub.
|
E429378
|
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: Metro Red Line extension to North Hollywood | Statement: [North Hollywood station, isPartOfProject, Metro Red Line extension to North Hollywood]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Metro Red Line extension to North Hollywood Context triple: [North Hollywood station, isPartOfProject, Metro Red Line extension to North Hollywood]
-
A.
Crenshaw/LAX Transit Project
The Crenshaw/LAX Transit Project is a Los Angeles Metro rail expansion initiative designed to improve transit access along the Crenshaw Corridor and provide a key light rail connection to the Los Angeles International Airport area.
-
B.
Red Line Northwest Extension corridor
The Red Line Northwest Extension corridor is a planned expansion route of Boston's MBTA Red Line intended to extend rapid transit service northwest from its current terminus.
-
C.
Metro C Line
The Metro C Line is a light rail line in Los Angeles County that runs east–west, connecting Norwalk to Redondo Beach and serving key transit hubs including Los Angeles International Airport via shuttle.
-
D.
Crenshaw/LAX Line
The Crenshaw/LAX Line, now known as the Metro K Line, is a Los Angeles Metro Rail light rail route serving the Crenshaw Corridor and providing key transit access to the area around Los Angeles International Airport.
-
E.
Eastside Extension corridor
The Eastside Extension corridor is a light rail transit corridor in East Los Angeles that carries Metro Rail service between downtown Los Angeles and several predominantly Latino eastside communities.
- 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: Metro Red Line extension to North Hollywood Triple: [North Hollywood station, isPartOfProject, Metro Red Line extension to North Hollywood]
Generated description
The Metro Red Line extension to North Hollywood is a Los Angeles County Metro Rail project that expanded the subway’s reach into the San Fernando Valley, making North Hollywood a major regional transit hub.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Metro Red Line extension to North Hollywood Target entity description: The Metro Red Line extension to North Hollywood is a Los Angeles County Metro Rail project that expanded the subway’s reach into the San Fernando Valley, making North Hollywood a major regional transit hub.
-
A.
Crenshaw/LAX Transit Project
The Crenshaw/LAX Transit Project is a Los Angeles Metro rail expansion initiative designed to improve transit access along the Crenshaw Corridor and provide a key light rail connection to the Los Angeles International Airport area.
-
B.
Red Line Northwest Extension corridor
The Red Line Northwest Extension corridor is a planned expansion route of Boston's MBTA Red Line intended to extend rapid transit service northwest from its current terminus.
-
C.
Metro C Line
The Metro C Line is a light rail line in Los Angeles County that runs east–west, connecting Norwalk to Redondo Beach and serving key transit hubs including Los Angeles International Airport via shuttle.
-
D.
Crenshaw/LAX Line
The Crenshaw/LAX Line, now known as the Metro K Line, is a Los Angeles Metro Rail light rail route serving the Crenshaw Corridor and providing key transit access to the area around Los Angeles International Airport.
-
E.
Eastside Extension corridor
The Eastside Extension corridor is a light rail transit corridor in East Los Angeles that carries Metro Rail service between downtown Los Angeles and several predominantly Latino eastside communities.
- 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_69b345528ebc8190b5abc7e95094792d |
completed | March 12, 2026, 10:59 p.m. |
| NER | Named-entity recognition | batch_69b350b66450819089c9ff6ff9f045e5 |
completed | March 12, 2026, 11:48 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b5c7507f1081909cf737dff00542d9 |
completed | March 14, 2026, 8:38 p.m. |
| NEDg | Description generation | batch_69b5c909b7848190bbe00249e0c9e555 |
completed | March 14, 2026, 8:46 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69b5c97117088190972bba5dbc1553f7 |
completed | March 14, 2026, 8:47 p.m. |
Created at: March 12, 2026, 11:08 p.m.