Triple
T18414130
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | assassination of Olof Palme |
E441842
|
entity |
| Predicate | laterOfficialSuspect |
P70159
|
FINISHED |
| Object | Stig Engström |
—
|
NE NERFINISHED |
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: Stig Engström | Statement: [assassination of Olof Palme, laterOfficialSuspect, Stig Engström]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Stig Engström Context triple: [assassination of Olof Palme, laterOfficialSuspect, Stig Engström]
-
A.
Marcus Fjellström
Marcus Fjellström was a Swedish composer known for his darkly atmospheric, experimental works that blended contemporary classical music with electronic and cinematic elements.
-
B.
Erik Renström
Erik Renström is a Swedish academic and professor who serves as the rector (vice-chancellor) of Lund University.
-
C.
Stefan Larsson
Stefan Larsson is a Swedish business executive known for leading major global fashion and apparel companies, including serving as CEO of PVH Corp.
-
D.
Glenn Ljungström
Glenn Ljungström is a Swedish guitarist best known for his early work with the melodic death metal band In Flames and his contributions to shaping the Gothenburg metal sound.
-
E.
Mats Lusth
Mats Lusth is a former Swedish ice hockey player and coach best known for his long association with Malmö Redhawks in the Swedish leagues.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Stig Engström Target entity description: Stig Engström was a Swedish graphic designer who, decades after the 1986 killing of Prime Minister Olof Palme, was controversially identified by prosecutors as the likely perpetrator of the assassination.
-
A.
Marcus Fjellström
Marcus Fjellström was a Swedish composer known for his darkly atmospheric, experimental works that blended contemporary classical music with electronic and cinematic elements.
-
B.
Erik Renström
Erik Renström is a Swedish academic and professor who serves as the rector (vice-chancellor) of Lund University.
-
C.
Stefan Larsson
Stefan Larsson is a Swedish business executive known for leading major global fashion and apparel companies, including serving as CEO of PVH Corp.
-
D.
Glenn Ljungström
Glenn Ljungström is a Swedish guitarist best known for his early work with the melodic death metal band In Flames and his contributions to shaping the Gothenburg metal sound.
-
E.
Mats Lusth
Mats Lusth is a former Swedish ice hockey player and coach best known for his long association with Malmö Redhawks in the Swedish leagues.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: laterOfficialSuspect Context triple: [assassination of Olof Palme, laterOfficialSuspect, Stig Engström]
-
A.
notableSuspect
chosen
Indicates that an individual is a particularly significant or prominent suspect in relation to an event, case, or investigation.
-
B.
suspectedPerpetrator
Indicates that an entity is believed or alleged to be the person responsible for committing a particular harmful or illegal act.
-
C.
questionedCharacter
Indicates that one entity directed questions or an interrogation toward another entity.
-
D.
allegedImpostor
Indicates that one entity is claimed or suspected to be fraudulently posing as another entity.
-
E.
firstAccused
Indicates that the subject is the primary or earliest individual formally charged or blamed in a particular case or incident.
- F. None of above.
Provenance (3 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_69d8b9eb8a508190a942fd75ebd8b1dc |
completed | April 10, 2026, 8:50 a.m. |
| NER | Named-entity recognition | batch_69e51a26d268819098e6791dc98efcda |
completed | April 19, 2026, 6:08 p.m. |
| PD | Predicate disambiguation | batch_69e469bf7f74819096a01173493412c2 |
completed | April 19, 2026, 5:35 a.m. |
Created at: April 10, 2026, 10:47 a.m.