Background: 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.
Question: What block does Northwestern Catalan and Valencian belong to?
Answer:<extra_id_0>.
<extra_id_0> Western Catalan<extra_id_1>