Use genitive to clarify who owns something in a sentence, preventing confusion. In 'Samantha's glasses,' we understand the glasses belong to Samantha.
Pro Tip 2/3
Not Always Possession
Genitive can also show other relationships, not just ownership, like origin or type. 'Women's rights' signifies rights related to women, not owned by them.
Pro Tip 3/3
Cultural Nuance
In some cultures, using genitive can imply familiarity or respect when referring to people. Calling a place 'Maria's café' may imply warmth or personal connection.