Related links are as follows:
Github repo: https://github.com/HY-UDBMS/UniBench_new
Generated datasets: https://github.com/HY-UDBMS/UniBench_new/releases
New multi-model queries with RDF ( Q11-Q15): https://github.com/HY-UDBMS/UniBench_new/blob/master/src/main/java/MMDB.java