Replace '-' with 'N/A' in ontology score, vocabulary score and metadata score when metadata is empty
Replace '-' with 'N/A' in ontology score, vocabulary score and
metadata score when metadata is empty

level-five/umakadata-1,level-five/umakadata-1,dbcls/umakadata,dbcls/umakadata,dbcls/umakadata,level-five/umakadata-1,dbcls/umakadata,level-five/umakadata-1