Read this: Western Catalan comprises the two dialects of Northwestern Catalan and Valencian; the Eastern block comprises four dialects: Central Catalan, Balearic, Rossellonese, and Alguerese. Each dialect can be further subdivided in several subdialects.

What two dialects does Western Catalan include?
What is the answer? (If it cannot be answered, return "unanswerable")
Northwestern Catalan and Valencian