The document discusses the possessive 's and its grammar rules. The possessive 's is used to indicate ownership and is added to the end of a name with an apostrophe, such as Mary's cat. If there are two names, the possessive 's goes after the second name, like John and Mary's goldfish. When using the possessive 's, any preceding article like "the" should be removed. The possessive 's corresponds to the "genitivo sassone" in Italian.

1. THE
POSSESIV
E ‘S
YOU USE IT WHEN
YOU WANT TO SAY
WHOSE
SOMETHING

2. GRAMMAR RULES TO USE IT:
• WE PUT IT AT THE END OF A NAME: MARY’S CAT
• IF THE LAST LETTER OF THE NAME IS S YOU MUST PUT AT
THE END OF THE NAME AN APOSTROPHE (‘) : NICOLAS’
DOG
• IF IN A SENTENCE THERE ARE TWO NAMES YOU MUST PUT
THE ‘S AT THE END OF THE SECOND NAME: JOHN AND
MARY’S GOLDFISH

3. THE POSSESIVE ‘S AND THE ARTICLES
• YOU MUST REMOVE THE ARTICLE WHEN, AFTER THE NAME
THERE IS THE POSSESIVE ‘S:
THE LILY’S DOG  LILY’S DOG

4. IT CORRESPONDS…
TO THE «GENITIVO SASSONE» IN ITALIAN