The Onion Field (book)
E824124
"The Onion Field" is a true-crime book by Joseph Wambaugh that recounts the 1963 kidnapping of two Los Angeles police officers and the murder of one of them in a Kern County onion field, exploring the psychological aftermath and legal fallout of the crime.
All labels observed (2)
| Label | Occurrences |
|---|---|
| The Onion Field (book) canonical | 8 |
| The Onion Field | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T9839420 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: The Onion Field (book) Context triple: [The Onion Field, basedOn, The Onion Field (book)]
-
A.
The Onion Field
The Onion Field is a 1979 crime drama film based on Joseph Wambaugh’s true-crime book about a real-life kidnapping and murder of a Los Angeles police officer.
-
B.
He Who Walks Behind the Rows
He Who Walks Behind the Rows is a demonic entity from Stephen King’s "Children of the Corn" mythos, revered by murderous rural children as a godlike force demanding blood sacrifice.
-
C.
The Cornfield
The Cornfield is a historically significant field at Antietam where some of the fiercest and bloodiest fighting of the American Civil War occurred.
-
D.
The Cornfield
The Cornfield is a celebrated 1826 landscape painting by English Romantic artist John Constable, depicting a rural Suffolk scene with meticulous natural detail and atmospheric light.
-
E.
A Stricken Field
A Stricken Field is a 1940 novel by war correspondent Martha Gellhorn that portrays the turmoil and human cost of Nazi occupation in Czechoslovakia.
- 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: The Onion Field (book) Target entity description: "The Onion Field" is a true-crime book by Joseph Wambaugh that recounts the 1963 kidnapping of two Los Angeles police officers and the murder of one of them in a Kern County onion field, exploring the psychological aftermath and legal fallout of the crime.
-
A.
The Onion Field
The Onion Field is a 1979 crime drama film based on Joseph Wambaugh’s true-crime book about a real-life kidnapping and murder of a Los Angeles police officer.
-
B.
He Who Walks Behind the Rows
He Who Walks Behind the Rows is a demonic entity from Stephen King’s "Children of the Corn" mythos, revered by murderous rural children as a godlike force demanding blood sacrifice.
-
C.
The Cornfield
The Cornfield is a historically significant field at Antietam where some of the fiercest and bloodiest fighting of the American Civil War occurred.
-
D.
The Cornfield
The Cornfield is a celebrated 1826 landscape painting by English Romantic artist John Constable, depicting a rural Suffolk scene with meticulous natural detail and atmospheric light.
-
E.
A Stricken Field
A Stricken Field is a 1940 novel by war correspondent Martha Gellhorn that portrays the turmoil and human cost of Nazi occupation in Czechoslovakia.
- F. None of above. chosen
Statements (32)
| Predicate | Object |
|---|---|
| instanceOf |
book
ⓘ
true crime book ⓘ |
| adaptedInto |
The Onion Field (film)
ⓘ
linked to:
The Onion Field
|
| author | Joseph Wambaugh ⓘ |
| basedOnEvent | 1963 kidnapping and murder of LAPD officer Ian Campbell ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| featuresPerson |
Gregory Powell
ⓘ
Ian Campbell ⓘ Jimmy Lee Smith ⓘ Karl Hettinger ⓘ |
| filmAdaptationReleaseYear | 1979 ⓘ |
| genre |
non-fiction
ⓘ
true crime ⓘ |
| hasAuthorOccupation | former Los Angeles Police Department officer ⓘ |
| hasISBN | 9780385281622 ⓘ |
| hasMediaType |
hardcover
ⓘ
paperback ⓘ print ⓘ |
| language | English ⓘ |
| notableFor |
critique of the criminal justice system
ⓘ
detailed psychological portrait of surviving officer Karl Hettinger ⓘ influence on true-crime literary genre ⓘ |
| originalPublicationDate | 1973 ⓘ |
| publicationYear | 1973 ⓘ |
| publisher | Delacorte Press ⓘ |
| setInLocation |
Kern County, California
ⓘ
linked to:
Kern County
Los Angeles ⓘ |
| subject |
kidnapping of two Los Angeles police officers
ⓘ
legal proceedings following the crime ⓘ murder of a Los Angeles police officer ⓘ psychological aftermath of violent crime ⓘ |
| timePeriod | 1963 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: The Onion Field (book) Description of subject: "The Onion Field" is a true-crime book by Joseph Wambaugh that recounts the 1963 kidnapping of two Los Angeles police officers and the murder of one of them in a Kern County onion field, exploring the psychological aftermath and legal fallout of the crime.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: The Onion Field (book)
linked to: The Onion Field (book)
subject linked to:
Ian Campbell
subject linked to:
Ian Campbell
subject linked to:
Ian Campbell
linked to: The Onion Field (book)