*account+*right+*table of contents+*mates+*children Search 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 *account+*right+*table of contents+*mates+*children+*children Cards formed by "mating" *account+*right+*table of contents+*mates+*children with another card. eg: "*account+*right+*table of contents+*mates+*children+mate".