Action
http://schema.org/Thing
http://schema.org/UpdateAction
http://schema.org/SearchAction
http://schema.org/AssessAction
http://schema.org/AchieveAction
http://schema.org/ControlAction
http://schema.org/CreateAction
http://schema.org/ConsumeAction
http://schema.org/OrganizeAction
http://schema.org/TradeAction
http://schema.org/TransferAction
http://schema.org/PlayAction
http://schema.org/InteractAction
http://schema.org/FindAction
http://schema.org/MoveAction 
http://kingsley.idehen.net/public_home/kidehen/Public/Linked%20Data%20Documents/Nanotations/random-notes-actions.ttl#AlexaIntent
http://kbpedia.org/kko/rc/Action
http://www.openlinksw.com/ontology/stepbyguide#ActionItem
http://schema.org/SolveMathAction
http://schema.org/SeekToAction