This is the 5119th most frequent Turkish word.
hizmetinin
"Of his/her/its service" or "of his/her/its assistance."
In this sentence, 'hizmetinin' shows possession, referring to the quality of the service provided by the restaurant.
Bu restoranın hizmetinin kalitesi çok yüksektir.
The quality of this restaurant's service is very high.
Here, 'hizmetinin' indicates possession and relates to the service duration belonging to a certain entity.
Hizmetinin süresi dolduktan sonra yenilemek gerekiyor.
After the duration of the service has expired, it needs to be renewed.
In this sentence, 'hizmetinin' is used to indicate possession of the advantages by the health insurance service.