Individual #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:  syntax.studies  studies of the rules for forming admissible sentences
  >part:  morphology.grammar.studies  studies of the rules for forming admissible words
     >part:  inflectional_morphology__accidence  the part of grammar that deals with the inflections of words
     >part:  derivational_morphology  the part of grammar that deals with the derivations of words
     >part:  compound_morphology  the part of grammar that deals with combinations of simple words into compound words

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