syn region factorSymbols start=/\v<SYMBOLS:>/ end=/\v<;>/ contains=@factorComment
syn region factorConstructor2 start=/\v<CONSTRUCTOR:?/ end=/\v<;>/ contains=@factorComment
syn region factorIntersection start=/\v<INTERSECTION:>/ end=/\v<;>/ contains=@factorComment
syn region factorSymbols start=/\v<SYMBOLS:>/ end=/\v<;>/ contains=@factorComment
syn region factorConstructor2 start=/\v<CONSTRUCTOR:?/ end=/\v<;>/ contains=@factorComment
syn region factorIntersection start=/\v<INTERSECTION:>/ end=/\v<;>/ contains=@factorComment