synbiomine: add SO class STS
synbiomine: add SO class STS

Former-commit-id: adf69ae4de9ba1d4c46b62be63c7cc874668975c
julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine