 Complete the following phrase:  Sumbawa had, historically speaking, three major linguistic groups who spoke languages that were unintelligible to each other. One group centered in the western side of the island speaks Basa Semawa Indonesian: Bahasa Sumbawa which is similar to the Sasak language from nearby Lombok; the second group in the east speaks Nggahi Mbojo Bahasa Bima. They were once separated by the Tambora culture, which spoke a language related to neither. After the demise of Tambora due to the 