Complex sentence: The city of Karlskrona is spread over 30 islands in the eastern part of Blekinge archipelago, Trossö being the main one;, Saltö, Hästö, Långö and Aspö.
Split into simpler sentences: The city of Karlskrona is spread over 30 islands in the eastern part of Blekinge archipelago, Trossö being the main one;. Other populated mentionable islands are Saltö, Hästö, Långö and Aspö.