Building Knowledge Graph

Question

I’m a total noob to building knowledge graphs so sorry in advance. I’ve been provided a large dataset with pretty unorthodox data about industrial machines, and I’m trying to create a scheme and knowledge graph to represent the data. I’m pretty read up on RDF, OWL, etc and I’m wondering what software I can use (maybe Apache Jena?) to build an ontology for this data, and then produce a knowledge graph. I wanted to develop the ontology in Protege, but I’m not sure if I can then import that into Apache Jena. If someone could help me get started in the right direction that would be amazing, thanks!!

Also I am required to use GrapQL for querying and PostgreSQL for graph storage.

Also I am required to use GrapQL for querying and PostgreSQL for graph storage.