What formats can RDF be represented in?
RDF statements (or triples) can be encoded in a number of different formats, whether XML based (e.g., RDF/XML) or not (Turtle, N-triples, …). In general it does not really matter which of these formats (or serializations) are used to express data—the information is represented in RDF triples and the particular format is only the “syntactic sugar”. Most RDF tools can parse several of these serialization formats. Compare to “numbers” as opposed to “numerals”. Numbers are mathematical concepts; numerals are a representation thereof using Roman, Arabic, hexadecimal, octal, etc, representations. Some of those representations (like Roman) may be very complicated, some of those may be simpler or more familiar, but they all represent the same abstract concept.