{
    "Elasticsearch": "http://www.ontotext.com/connectors/elasticsearch#",
    "OpenSearch": "http://www.ontotext.com/connectors/opensearch#",
    "Solr": "http://www.ontotext.com/connectors/solr#",
    "Lucene": "http://www.ontotext.com/connectors/lucene#",
    "Kafka": "http://www.ontotext.com/connectors/kafka#",
    "ChatGPT Retrieval": "http://www.ontotext.com/connectors/retrieval#"
}