Literal
type: Class
notation: Literal
comment: The class rdfs:Literal is the class of literal values such as strings and integers. Property values such as textual strings are examples of RDF literals.
subclass of: Resource

Resource
type: Class
notation: Resource
comment: All things described by RDF are called resources, and are instances of the class rdfs:Resource. This is the class of everything. All other classes are subclasses of this class. rdfs:Resource is an instance of rdfs:Class.