{ "items" : [
    { "id" : "http://dbpedia.org/resource/Sieve_theory"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "Sieve theory is a set of general techniques in number theory, designed to count, or more realistically to estimate the size of, sifted sets of integers. The primordial example of a sifted set is the set of prime numbers up to some prescribed limit X.  Correspondingly, the primordial example of a sieve is the sieve of Eratosthenes, or the more general Legendre sieve."] } } }
