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The ONKI is provided as a part of the ONKI Living Lab - an open lab for testing the latest semantic web technologies in practice, with real users like you. Currently, over 10 000 people are using ONKI each month.


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The Finnish Spatio-temporal Ontology
The Finnish Spatio-temporal Ontology

The Finnish Spatio-temporal Ontology (SAPO) is an ontology time series of Finnish municipalities over the time interval (1865-).

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The way property values are displayed:

The way concept relations are shown:




Petsamo(1921-1939)