Individual #syntax.studies  studies of the rules for forming admissible sentences
  >part of:  #grammar.studies  studies of the formation of basic linguistic units
     >part of:  #synchronic_linguistics__descriptive_linguistics__descriptivelinguistic  an explanation of a person's mastery of their native language
        >part of:  #linguistics  the scientific study of language
  >part of:  is#theoretical_linguistics__theoreticallinguistic
     >part of:  #linguistics  the scientific study of language

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