Elton John is a singer who sang 'Tiny Dancer'.

(The restaurant, which is on the other side of town, has incredible meat.) The restaurant, which has incredible meat, is on the other side of town.

My mum, whose cake is famous, is coming over tomorrow.

I am studying medicine, which is really fun.

The shop where I needed to buy something was closed.

That's/Over there is the woman who helped me find the hotel.

The library, where I usually go every Saturday, is closed.

That's/Over there is the cafe where I met my husband.

I like books which have strong main characters.

The author, whose books I have read, is visiting our school.

The car which has a scratch is mine.

My dentist, who I saw yesterday, told me to floss.