Personal Knowledge Graphs, Ontology, Datalog, AI.
syntactically a subset of Prolog, Datalog generally…en.wikipedia.org Let's look at the most famous example of graph queries in Datalog. edge(1, 2). edge(1,4) edge(2, 3). edge(3, 4). path(a, b) :- edge(a, b). path(a, b) :- path(a, c), edge(c, b). As you can see, the datalog program consists of