What is the meaning of で in this sentence


I got very confused with the meaning of this sentence because of で. What does
it mean here?

> オーストラリアは大陸で、それから国です。




This 〜で is just connecting two です statements. Your sentence is basically just
contracting this

> オーストラリアは大陸です。そして、それから国です。 → Australia is a continent. It is also a country.




This 〜で is just connecting two です statements. Your sentence is basically just
contracting this

> オーストラリアは大陸です。そして、それから国です。 → Australia is a continent. It is also a country.

