@namespace("eu.dnetlib.iis.importer.schemas")
protocol IIS{

    record Project {
//      InformationSpace project identifier
        string id;
//      project grant identifier, 6-digit number
        union { null , string } projectGrantId = null;
//      project acronym
        union { null , string } projectAcronym = null;
//      project funding class e.g. FP7 or WT
        union { null , string } fundingClass = null;
    }
}