Triple
T38452
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Red Line |
E761
|
entity |
| Predicate | servesStation |
P839
|
FINISHED |
| Object |
Charles/MGH
Charles/MGH is an elevated Massachusetts Bay Transportation Authority subway station in Boston located near Massachusetts General Hospital and the Charles River.
|
E5258
|
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: Charles/MGH | Statement: [MBTA Red Line, servesStation, Charles/MGH]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Charles/MGH Context triple: [MBTA Red Line, servesStation, Charles/MGH]
-
A.
Newton-Wellesley Hospital
Newton-Wellesley Hospital is a community teaching hospital serving the Greater Boston area with a range of medical and surgical services.
-
B.
Thomas Harvard
Thomas Harvard was a 17th-century Englishman known primarily as the brother of John Harvard, the clergyman and benefactor after whom Harvard University is named.
-
C.
CHOP
CHOP is a leading pediatric hospital and research institution in Philadelphia renowned for its specialized care for children and groundbreaking medical research.
-
D.
Carl
Carl is the given name of Carl Sagan, the renowned American astronomer, science communicator, and author.
-
E.
Increase Mather
Increase Mather was a prominent 17th-century New England Puritan minister and political leader who played a major role in colonial religious life and governance, including efforts to curb the excesses of the Salem witch trials.
- 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: Charles/MGH Triple: [MBTA Red Line, servesStation, Charles/MGH]
Generated description
Charles/MGH is an elevated Massachusetts Bay Transportation Authority subway station in Boston located near Massachusetts General Hospital and the Charles River.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Charles/MGH Target entity description: Charles/MGH is an elevated Massachusetts Bay Transportation Authority subway station in Boston located near Massachusetts General Hospital and the Charles River.
-
A.
Newton-Wellesley Hospital
Newton-Wellesley Hospital is a community teaching hospital serving the Greater Boston area with a range of medical and surgical services.
-
B.
Thomas Harvard
Thomas Harvard was a 17th-century Englishman known primarily as the brother of John Harvard, the clergyman and benefactor after whom Harvard University is named.
-
C.
CHOP
CHOP is a leading pediatric hospital and research institution in Philadelphia renowned for its specialized care for children and groundbreaking medical research.
-
D.
Carl
Carl is the given name of Carl Sagan, the renowned American astronomer, science communicator, and author.
-
E.
Increase Mather
Increase Mather was a prominent 17th-century New England Puritan minister and political leader who played a major role in colonial religious life and governance, including efforts to curb the excesses of the Salem witch trials.
- 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_69a247a8f6c08190bac804906d62ed5a |
completed | Feb. 28, 2026, 1:40 a.m. |
| NER | Named-entity recognition | batch_69a24ec1ef5481909daf99654dfa3f57 |
completed | Feb. 28, 2026, 2:11 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a255322d048190b3a45c6c6a80230c |
completed | Feb. 28, 2026, 2:38 a.m. |
| NEDg | Description generation | batch_69a255ee9c1c8190a9d1db89af34fbaf |
completed | Feb. 28, 2026, 2:41 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a256a35c3081908aa5522c734bd54d |
completed | Feb. 28, 2026, 2:44 a.m. |
Created at: Feb. 28, 2026, 1:46 a.m.