I want to design specific class hierarchy consisting of three classes: Certificate, Organization, User. Both Certificate and Organization seem to me to be kinda
dgml
blowfish
dat.gui
core-graphics
biometrics
nsuseractivity
n8n
instaloader
esmodules
plymouth-script
gmock
bootstrap-wysiwyg
gm
android-version
graphql-spqr
non-equi-join
data-quality-services
cubic
child-nodes
install-requires
angular2-routing
snoopy
postfix-notation
usestyles
procmon
gamecontroller
jailbreak
react-google-maps-api
strongly-connected-graph
dataframe