OntoTrader: An Ontological Web Trading Agent Approach for Environmental Information Retrieval

Algorithm 6

(01) (QUERY-REF:sender …:receiver …:content ”…

(02)   <QueryForm rdf:about=∖“http://acg.ual.es/soleres/tests/LookupOntology.owl#QueryFormInstance∖ ”>

(03)    <queryString rdf:datatype=∖“http://www.w3.org/2001/XMLSchema#string∖ ”>

(04)   PREFIX eim: <http://acg.ual.es/soleres/tests/EIMOntology.owl#>

(05)   PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

(06)   SELECT DISTINCT ?EIM__VarMin

(07)   WHERE  {

(08)    ?EIM__Var eim:Variable_id ?EIM__VarId.

(09)    ?EIM__Var eim:Variable_name ?EIM__VariableName.

(10)     ?EIM__Var eim:Variable_minimumValue ?EIM__VarMin.

(11)      FILTER (?EIM__VarId = ∖“VAR_0000000202∖”).

(12)   }

(13)   </queryString>

(14) </QueryForm>

(15) <Qyery  rdf:about=∖“http://acg.ual.es/soleres/tests/LookupOntology.owl#QueryInstance∖”/>

(16) </rdf:RDF>”

(17) :language “LookupOntology”

(18) :ontology http:// …/tests/LookupOntology.owl)