text: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  const META_TYPE = "META_TYPE";
  const ATTRIBUTE_TYPE = "ATTRIBUTE_TYPE";
  const RELATIONSHIP_TYPE = "RELATIONSHIP_TYPE";
  const ENTITY_TYPE = "ENTITY_TYPE";
  const ENTITY = "ENTITY";
  const ATTRIBUTE = "ATTRIBUTE";
  const RELATIONSHIP = "RELATIONSHIP";
  const ROLE = "ROLE";
  const RULE = "RULE";
  
  const SCHEMA_CONCEPTS = new Set([RULE, ROLE, ATTRIBUTE_TYPE, RELATIONSHIP_TYPE, ENTITY_TYPE]);
  const TYPES = new Set([ATTRIBUTE_TYPE, RELATIONSHIP_TYPE, ENTITY_TYPE]);
  const THINGS = new Set([ATTRIBUTE, RELATIONSHIP, ATTRIBUTE, ENTITY]);
  
  module.exports = {
      baseType: {
          META_TYPE,
          ATTRIBUTE,
          ATTRIBUTE_TYPE,
          ROLE,
          RULE,
          RELATIONSHIP,
          RELATIONSHIP_TYPE,
          ENTITY,
          ENTITY_TYPE
      },
      set: {
          SCHEMA_CONCEPTS, TYPES, THINGS
      }
  };
  