Some ISSVA classes match to SNOMED/ORDO/NCIt/HPO classes that seem to be a non-exact match, for example:
ISSVA:Angiokeratoma - SCT:Angiokeratoma (morphologic abnormality) AND SCT:Angiokeratoma of skin (disorder)
Those mappings can be given the skos:closeMatch property instead of skos:exactMatch
Some ISSVA classes match to SNOMED/ORDO/NCIt/HPO classes that seem to be a non-exact match, for example: ISSVA:Angiokeratoma - SCT:Angiokeratoma (morphologic abnormality) AND SCT:Angiokeratoma of skin (disorder)
Those mappings can be given the skos:closeMatch property instead of skos:exactMatch