@prefix id: <http://example.com/id/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix animals: <http://example.com/ns/animals/> .

id:1 rdfs:type animals:dog .
id:2 rdfs:type animals:cat .
id:3 rdfs:type animals:bird .
id:4 rdfs:type <http://example.com/ns/animals/reptiles/snake> .