"$Preved, medved!"
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Groovy script
  Compound Gstring
    PsiElement(Gstring begin)('"')
    GrStringContentImpl(GString content element)
      ASTWrapperPsiElement(Gstring content)
        <empty list>
    GString injection
      PsiElement($)('$')
      Reference expression
        PsiElement(identifier)('Preved')
    GrStringContentImpl(GString content element)
      PsiElement(Gstring content)(', medved!')
    PsiElement(Gstring end)('"')