Complex sentence: Typically the body is made of Mahogany or Basswood with the exception of the RGT220A, where the body is made of swamp ash, while the fretboard is made of Rosewood with the exception of the RG350MDX, where the fretboard is made of maple.
Split into simpler sentences: Typically the body is made of Mahogany or Basswood with the exception of the RGT220A, where the body is made of swamp ash. The fretboard is made of Rosewood with the exception of the RG350MDX, where the fretboard is made of maple.