spacelab skin+*machine input+*children+*self Set Toggle navigation activity Toggle Dropdown history discuss follow editors rules Toggle Dropdown common by group by name recent edit Toggle Dropdown content name type refresh children mates references out references in spacelab skin+*machine input+*children+*self+*children Cards formed by "mating" spacelab skin+*machine input+*children+*self with another card. eg: "spacelab skin+*machine input+*children+*self+mate".