Complex sentence: Alghero today is struggling to retain the use of Catalan, which is a linguistic island and only 10-15% of its inhabitants speak it in Alghero variant, recognized by the Italian Republic and Sardinia as a minority language.
Split into simpler sentences: Alghero today is struggling to retain the use of Catalan, which is a linguistic island and only 10-15% of its inhabitants speak it in it's Alghero variant. The language is recognized by both the Italian Republic and Sardinia as a minority language.