Re-enable partial-semigroup
Re-enable partial-semigroup
mstksg/stackage,iand675/stackage,Daniel-Diaz/stackage,stackbuilders/stackage,peti/stackage,spencerjanssen/stackage,massysett/stackage,clinty/stackage,soenkehahn/stackage,mrkkrp/stackage,simonmichael/stackage,asr/stackage,michalkonecny/stackage,fpco/stackage,wereHamster/stackage,int-index/stackage,jonschoning/stackage,ethercrow/stackage,mgajda/stackage,fimad/stackage,athanclark/stackage