45. Possessive adjectives may be used predicatively, as "the book is
mine," or may modify some word or words not expressed, as "mine are
large." Instead of having special forms, like English "mine", "yours",
"hers", etc., Esperanto uses the regular possessive adjectives preceded
by the article:
La granda libro estas la mia, the large book is mine.
La via estas granda, la miaj estas belaj,
yours is large, mine are beautiful.
Ili havas la sian, sed ne la lian, they have theirs, but not his.
La iliaj sxajnas esti bonaj, theirs seem to be good.