Triple
T15400189
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tiruvallur district |
E368292
|
entity |
| Predicate | hasReservoir |
P1025
|
FINISHED |
| Object |
Chembarambakkam lake
Chembarambakkam Lake is a major rain-fed reservoir near Chennai in Tamil Nadu, India, that serves as one of the primary sources of the city's drinking water.
|
E1157084
|
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: Chembarambakkam lake | Statement: [Tiruvallur district, hasReservoir, Chembarambakkam lake]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chembarambakkam lake Context triple: [Tiruvallur district, hasReservoir, Chembarambakkam lake]
-
A.
Puzhal lake
Puzhal lake is a major freshwater reservoir near Chennai in Tamil Nadu, India, serving as one of the city’s primary sources of drinking water.
-
B.
Ulsoor Lake
Ulsoor Lake is one of the largest and oldest lakes in Bengaluru, India, known for its scenic beauty, boating facilities, and surrounding parks.
-
C.
Gandipet Lake
Gandipet Lake is a man-made reservoir on the Musi River near Hyderabad, India, known for supplying drinking water to the city and serving as a popular recreational spot.
-
D.
Poondi reservoir
Poondi reservoir is a major water storage facility in Tamil Nadu, India, that serves as an important source of drinking water for the city of Chennai.
-
E.
Periyar Lake
Periyar Lake is an artificial reservoir in Kerala, India, renowned for its scenic wildlife boat safaris and as a key habitat for elephants and other fauna within Periyar National Park.
- 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: Chembarambakkam lake Triple: [Tiruvallur district, hasReservoir, Chembarambakkam lake]
Generated description
Chembarambakkam Lake is a major rain-fed reservoir near Chennai in Tamil Nadu, India, that serves as one of the primary sources of the city's drinking water.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Chembarambakkam lake Target entity description: Chembarambakkam Lake is a major rain-fed reservoir near Chennai in Tamil Nadu, India, that serves as one of the primary sources of the city's drinking water.
-
A.
Puzhal lake
Puzhal lake is a major freshwater reservoir near Chennai in Tamil Nadu, India, serving as one of the city’s primary sources of drinking water.
-
B.
Ulsoor Lake
Ulsoor Lake is one of the largest and oldest lakes in Bengaluru, India, known for its scenic beauty, boating facilities, and surrounding parks.
-
C.
Gandipet Lake
Gandipet Lake is a man-made reservoir on the Musi River near Hyderabad, India, known for supplying drinking water to the city and serving as a popular recreational spot.
-
D.
Poondi reservoir
Poondi reservoir is a major water storage facility in Tamil Nadu, India, that serves as an important source of drinking water for the city of Chennai.
-
E.
Periyar Lake
Periyar Lake is an artificial reservoir in Kerala, India, renowned for its scenic wildlife boat safaris and as a key habitat for elephants and other fauna within Periyar National Park.
- 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_69d85a16c68c819099c1b547fbc87b32 |
completed | April 10, 2026, 2:01 a.m. |
| NER | Named-entity recognition | batch_69e03e8d89e08190b7cae778d89fb5e1 |
completed | April 16, 2026, 1:42 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ff219a285481909eef3ec6e523573c |
completed | May 9, 2026, 11:59 a.m. |
| NEDg | Description generation | batch_69ff22b9c980819093e05036ba21eaf0 |
completed | May 9, 2026, 12:04 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ff2339ae808190bf2d4676215399c0 |
completed | May 9, 2026, 12:06 p.m. |
Created at: April 10, 2026, 3:19 a.m.