Triple
T5608671
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Reformatory Branch Trail |
E147296
|
entity |
| Predicate | followsFormerLineOf |
P2127
|
FINISHED |
| Object | Boston and Lowell Railroad Reformatory Branch |
E81016
|
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: Boston and Lowell Railroad Reformatory Branch | Statement: [Reformatory Branch Trail, followsFormerLineOf, Boston and Lowell Railroad Reformatory Branch]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Boston and Lowell Railroad Reformatory Branch Context triple: [Reformatory Branch Trail, followsFormerLineOf, Boston and Lowell Railroad Reformatory Branch]
-
A.
Boston and Lowell Railroad
chosen
The Boston and Lowell Railroad was a 19th-century New England railway company that operated a key line between Boston and Lowell, Massachusetts, and later became part of larger regional rail systems.
-
B.
Fitchburg Line
The Fitchburg Line is a commuter rail service operated by the Massachusetts Bay Transportation Authority (MBTA) that runs between Boston and the city of Fitchburg in Massachusetts.
-
C.
Lowell Line
The Lowell Line is a Massachusetts Bay Transportation Authority commuter rail route that runs between Boston’s North Station and the city of Lowell, serving communities in the Merrimack Valley.
-
D.
Boston and Maine Railroad Lexington Branch
The Boston and Maine Railroad Lexington Branch was a former suburban rail line in Massachusetts that once connected communities northwest of Boston and later provided the corridor for today’s Minuteman Bikeway.
-
E.
Boston, Revere Beach and Lynn Railroad
The Boston, Revere Beach and Lynn Railroad was a narrow-gauge commuter railroad that operated along the Massachusetts North Shore, providing passenger service between East Boston, Revere, and Lynn in the late 19th and early 20th centuries.
- 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: followsFormerLineOf Context triple: [Reformatory Branch Trail, followsFormerLineOf, Boston and Lowell Railroad Reformatory Branch]
-
A.
successorLine
Indicates that one line directly follows another in a sequence or ordered arrangement.
-
B.
formerLine
Indicates that an entity previously served as a particular transit or service line but no longer does so.
-
C.
followsRouteOf
chosen
Indicates that one entity travels along the same path or route that another entity takes or has taken.
-
D.
formerLineName
Indicates that the object is a previous or former name by which the referenced line was known.
-
E.
follows
Indicates that one entity comes after, moves behind, or acts in accordance with another entity in time, space, or sequence.
- F. None of above.
Provenance (4 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_69c0090500f881908374285baf0ac46f |
completed | March 22, 2026, 3:21 p.m. |
| NER | Named-entity recognition | batch_69c020fe7ee0819088ced51afd9a4f93 |
completed | March 22, 2026, 5:03 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c04d4465388190b28f47f11e133b6a |
completed | March 22, 2026, 8:12 p.m. |
| PD | Predicate disambiguation | batch_69c01b1b3c98819080687d18ab10a914 |
completed | March 22, 2026, 4:38 p.m. |
Created at: March 22, 2026, 3:39 p.m.