private void processImport(Sheet sheet, int row) throws Exception {
   PrimitiveType prim = new PrimitiveType();
   prim.setCode(sheet.getColumn(row, "Data Type"));
   prim.setDefinition(sheet.getColumn(row, "Definition"));
   prim.setComment(sheet.getColumn(row, "Comments"));
   prim.setSchemaType(sheet.getColumn(row, "Schema"));
   prim.setRegEx(sheet.getColumn(row, "RegEx"));
   TypeRef td = new TypeRef();
   td.setName(prim.getCode());
   definitions.getKnownTypes().add(td);
   definitions.getPrimitives().put(prim.getCode(), prim);
 }
 private void gen(PrimitiveType t) {
   Section section = section(t.getCode());
   section.triple("fhir:" + t.getCode(), "rdfs:subClassOf", "fhir:Primitive");
   section.comment("fhir:" + t.getCode(), t.getDefinition());
   nilInstance.predicate("a", "fhir:" + t.getCode());
   section.triple("fhir:" + t.getCode() + ".value", "rdfs:subPropertyOf", "fhir:Primitive.value");
   section.triple("fhir:" + t.getCode() + ".value", "rdfs:domain", "fhir:" + t.getCode());
   if (t.getSchemaType().endsWith("+")) {
     section.triple(
         "fhir:" + t.getCode() + ".value",
         "rdfs:range",
         "xs:" + t.getSchemaType().substring(0, t.getSchemaType().length() - 1));
     section.triple(
         "fhir:" + t.getCode() + ".value",
         "owl:withRestriction",
         complex().predicate("xs:pattern", literal(t.getRegex())));
   } else if (t.getSchemaType().contains(",")) {
     section.triple(
         "fhir:" + t.getCode() + ".value",
         "rdfs:range",
         complex()
             .predicate("a", "owl:Class")
             .predicate("owl:unionOf", "(" + t.getSchemaType().replace(",", "") + ")"),
         "xs:union of " + t.getSchemaType());
   } else
     section.triple("fhir:" + t.getCode() + ".value", "rdfs:range", "xs:" + t.getSchemaType());
 }