**5. Linked open vocabularies**

Linked Open Vocabularies is a new concept in semantic web ontology. It consists of large amount of dataset around 660 vocabularies as on March 10, 2019. It fully supports the OWL and RDF framework for better management and identification of the right link available in an online database. SPARQL endpoint is easily accessed by using this interface. Properties and classes can be done on the basis of ontology concept that is subject, predicate, and object (https://lov.linkeddata.es/dataset/ lov/). Here all the dataset belongs to the vocabulary content or element type. **Figure 2** represents the Linked Open Vocabularies interface in semantic web for different elements and their relationship.
