IS-1
E419775
IS-1 was a Soviet heavy tank prototype developed during World War II that led to the production IS series of heavy tanks.
All labels observed (1)
| Label | Occurrences |
|---|---|
| IS-1 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4180099 — 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: IS-1 Context triple: [KV-1, successor, IS-1]
-
A.
Nims
Nims is a company operating under the Italian coffee brand Lavazza, likely involved in coffee-related products or services within its corporate group.
-
B.
ISD
ISD is the abbreviated name for the Intelligence and Security Division, a governmental body responsible for intelligence gathering and national security functions.
-
C.
Itsa
Itsa is a town in Egypt located within the Faiyum Governorate, known primarily as a local agricultural and administrative center.
-
D.
IASC
IASC is the abbreviation for the Indian Army Service Corps, the logistics and supply branch responsible for provisioning and transport within the Indian Army.
-
E.
Platoon Leaders Class
Platoon Leaders Class is a United States Marine Corps officer commissioning program that trains college students through summer training at Officer Candidates School.
- 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: IS-1 Target entity description: IS-1 was a Soviet heavy tank prototype developed during World War II that led to the production IS series of heavy tanks.
-
A.
Nims
Nims is a company operating under the Italian coffee brand Lavazza, likely involved in coffee-related products or services within its corporate group.
-
B.
ISD
ISD is the abbreviated name for the Intelligence and Security Division, a governmental body responsible for intelligence gathering and national security functions.
-
C.
Itsa
Itsa is a town in Egypt located within the Faiyum Governorate, known primarily as a local agricultural and administrative center.
-
D.
IASC
IASC is the abbreviation for the Indian Army Service Corps, the logistics and supply branch responsible for provisioning and transport within the Indian Army.
-
E.
Platoon Leaders Class
Platoon Leaders Class is a United States Marine Corps officer commissioning program that trains college students through summer training at Officer Candidates School.
- F. None of above. chosen
Statements (34)
| Predicate | Object |
|---|---|
| instanceOf |
Soviet heavy tank prototype
ⓘ
World War II tank ⓘ |
| alternativeName | IS-85 ⓘ |
| armamentPrimary | 85 mm D-5T tank gun ⓘ |
| armamentSecondary |
12.7 mm DShK machine gun
ⓘ
7.62 mm DT machine gun ⓘ |
| armorType | rolled homogeneous armor ⓘ |
| category | prototype tank ⓘ |
| chassisDerivedFrom | KV-13 prototype ⓘ |
| conflict | World War II ⓘ |
| countryOfOrigin | Soviet Union ⓘ |
| crew | 4 ⓘ |
| designedAs | breakthrough tank ⓘ |
| designedFor |
assaulting fortified positions
ⓘ
engaging enemy armor ⓘ |
| designedToReplace | KV series heavy tanks ⓘ |
| developedBy | Soviet Union ⓘ |
| developedInPeriod | early 1940s ⓘ |
| engineConfiguration | V-12 diesel ⓘ |
| engineType | V-2 diesel engine ⓘ |
| followedBy | IS-2 ⓘ |
| historicalEra | World War II armored warfare ⓘ |
| influenced |
IS-2
ⓘ
later IS series heavy tanks ⓘ |
| namedAfter | Joseph Stalin ⓘ |
| namedSeries |
Iosif Stalin tanks
ⓘ
linked to:
IS-2 heavy tank
|
| partOfSeries | IS tank family ⓘ |
| precededBy |
KV-1S
ⓘ
linked to:
KV-1 heavy tank
|
| role | heavy tank ⓘ |
| serviceBranch | Armored forces of the Red Army ⓘ |
| successorRole | basis for production IS series ⓘ |
| suspensionType | torsion bar suspension ⓘ |
| turretMount | 85 mm gun turret ⓘ |
| usedBy | Red Army ⓘ |
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: IS-1 Description of subject: IS-1 was a Soviet heavy tank prototype developed during World War II that led to the production IS series of heavy tanks.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
KV-1 heavy tank