[see example](https://pbonte.github.io/roxi/index.html?view=rq&abox=%3Chttp%3A%2F%2Fexample2.com%2Fa%3E%20%3Chttp%3A%2F%2Fwww.w3.org%2F1999%2F02%2F22-rdf-syntax-ns%23type%3E%20%3Chttp%3A%2F%2Fwww.test.be%2Ftest%23SubClass%3E%20.&rules=%40prefix%20test%3A%20%3Chttp%3A%2F%2Fwww.test.be%2Ftest%23%3E.%0A%40prefix%20rdf%3A%20%3Chttp%3A%2F%2Fwww.w3.org%2F1999%2F02%2F22-rdf-syntax-ns%23%3E.%0A%7B%3Fs%20rdf%3Atype%20test%3ASubClass.%20%7D%3D%3E%7B%3Fs%20rdf%3Atype%20test%3ASuperType.%7D&query=SELECT%20distinct%20%3Fs%20%3Fp%20%3Fo%20WHERE%20%7B%0A%09%3Fs%20%3Fp%20%3Fo.%0A%7D)
