In order to write queries to an OWL ontology we need to know the names of the OWL elements, notably OWL Properties (e.g. has_haplotype) and and OWL Classes (e.g. TPMTstar3A). (The Oslo University Hospital PGx OWL ontology that is used by the Pharmacoracle is still work in progress, but it is possible to have a closer , off-line look at the latest OWL version of the [https://www.pgx.no/farmakorakel/haplotypes.owl GRCh37 star allele definitions], which is best studied in [https://protegewiki.stanford.edu/wiki/Protege4UserDocs Stanford's Desktop Protégé]). In addition we need to know the Manchester expressions of cardinality that are used to connect OWL Properties and OWL Classes, in particular: