title: SPARQL query toward DBpedia for historical periods
body: <p>I have to introduce some SPARQL query toward DBpedia into a Prolog program. I am a beginner in the Semantic Web world and I don't know well it.  I am asking if there is some way to implement a query that, given a word as input, tells me whether this word names an historical period.</p>
  
  <p>For example, I pass to the query a word like: <strong>Jurassic</strong> or <strong>Cretaceous</strong> or <strong>Middle Age</strong> and it say me if this word is an historical period or something related to it.</p>