Triple
T7014993
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Dum Dum |
E162678
|
entity |
| Predicate | servedBy |
P82
|
FINISHED |
| Object |
Kolkata Metro Line 1
Kolkata Metro Line 1 is the oldest rapid transit line in Kolkata, running on a north–south corridor and forming the backbone of the city’s metro network.
|
E162700
|
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: Kolkata Metro Line 1 | Statement: [Dum Dum, servedBy, Kolkata Metro Line 1]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Kolkata Metro Line 1 Context triple: [Dum Dum, servedBy, Kolkata Metro Line 1]
-
A.
Kolkata Metro
Kolkata Metro is India’s oldest rapid transit system, serving as a major urban rail network for the city of Kolkata and its surrounding areas.
-
B.
Mumbai Metro
Mumbai Metro is a rapid transit system serving the Mumbai metropolitan region, designed to alleviate congestion and complement the city’s suburban railway network.
-
C.
Delhi Metro
Delhi Metro is a rapid transit system serving Delhi and its surrounding metropolitan region, known for its extensive network, modern infrastructure, and role in easing urban congestion.
-
D.
Bangalore Metro
Bangalore Metro is a rapid transit system serving the city of Bengaluru, India, providing an elevated and underground rail network to ease urban transportation and reduce traffic congestion.
-
E.
Noida Metro
Noida Metro is a rapid transit system serving the city of Noida and its surrounding areas in India’s National Capital 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: Kolkata Metro Line 1 Triple: [Dum Dum, servedBy, Kolkata Metro Line 1]
Generated description
Kolkata Metro Line 1 is the oldest rapid transit line in Kolkata, running on a north–south corridor and forming the backbone of the city’s metro network.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Kolkata Metro Line 1 Target entity description: Kolkata Metro Line 1 is the oldest rapid transit line in Kolkata, running on a north–south corridor and forming the backbone of the city’s metro network.
-
A.
Kolkata Metro
chosen
Kolkata Metro is India’s oldest rapid transit system, serving as a major urban rail network for the city of Kolkata and its surrounding areas.
-
B.
Mumbai Metro
Mumbai Metro is a rapid transit system serving the Mumbai metropolitan region, designed to alleviate congestion and complement the city’s suburban railway network.
-
C.
Delhi Metro
Delhi Metro is a rapid transit system serving Delhi and its surrounding metropolitan region, known for its extensive network, modern infrastructure, and role in easing urban congestion.
-
D.
Bangalore Metro
Bangalore Metro is a rapid transit system serving the city of Bengaluru, India, providing an elevated and underground rail network to ease urban transportation and reduce traffic congestion.
-
E.
Noida Metro
Noida Metro is a rapid transit system serving the city of Noida and its surrounding areas in India’s National Capital Region.
- F. None of above.
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_69c6885a127c8190867b059bdccf13ff |
completed | March 27, 2026, 1:38 p.m. |
| NER | Named-entity recognition | batch_69c6e1d31edc8190931655616d0739d1 |
completed | March 27, 2026, 8 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c76a53e96081909dfe21a80b20f80d |
completed | March 28, 2026, 5:42 a.m. |
| NEDg | Description generation | batch_69c76b5301748190b0780ae20504f22c |
completed | March 28, 2026, 5:46 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c76c01679c8190b61f642c23c25ed5 |
completed | March 28, 2026, 5:49 a.m. |
Created at: March 27, 2026, 2:34 p.m.