Messages like special-setaliases-parameterized, recently created as part of T256119, translate rather poorly as they re-use wikibase-entity-item and wikibase-entity-property that in different context (e.g. as stand-alone text in diff view) requires different declension in some languages (see i18n hints).

In order of preference, from translator's perspective, the following options would seem more appropriate:

• Do without parameters and create separate sets of special page title messages, one set that relates only to items, another that relates to both items and properties, and other combinations if necessary.
• Omit "Item/Property" from these special page titles, or just say "entity".
• Create new messages for "item" and "property" that are used as part of only these special page titles.