Similar to Template:IsValidPageName
Template:Enum
Template:EnumTemplate:EOL
Template:Encyclopedia of Life linkTemplate:Episode table
Template:Episode tableTemplate:Error
Template:ErrorTemplate:Error-small
Template:Error-smallTemplate:ESPNscrum
Template:ESPNscrumTemplate:Examine
Template:Examine Wikidata itemTemplate:Excerpt
Template:ExcerptTemplate:FadedPage
Template:FadedPageTemplate:Fashionmodel
Template:FashionmodelTemplate:Fed Cup
Template:Billie Jean King Cup playerTemplate:FIDE
Template:FIDETemplate:FIFA player
Template:FIFA playerTemplate:Fightstatstop3
Template:File link
Template:File linkTemplate:Find a Grave
Template:Find a GraveTemplate:Find sources
Template:Find sourcesTemplate:Find sources mainspace
Template:Find sources mainspaceTemplate:Find sources video games japanese language
Template:Find sources VR games japanese language
Template:First word
Template:First wordTemplate:Flaglist
Template:FlaglistTemplate:FlagOCA
Template:Flag OCATemplate:Flexbox
Template:Flexbox start
Template:Fmbox
Template:FmboxTemplate:FMD designer
Template:FMD designerTemplate:Football box
Template:Football box