RemoveMobs:
    type: world
    events:
        on rement command:
            - define selReg <player.selected_region>
            if <def[selReg].size> > 0 {
                - define selEnts <def[selReg].list_living_entities>
                if <def[selEnts].size> > 0 {
                    - remove selEnts
                    - narrate format:ServerChat "Removed <def[selEnts].size> entities from the selected WorldEdit region." targets:<player>
                } else {
                    - narrate format:ServerChat "No entities found in the region!"
                }
            } else {
                - narrate format:ServerChat "You must first select a region using WorldEdit!"
            }
            - determine fulfilled