class_docstr: Class representing primitive categories.
  Takes a string representation of the category, and a
  list of strings specifying the morphological subcategories.
class_docstr_tok: ["Class","representing","primitive","categories",".","Takes","a","string","representation","of","the","category",",","and","a","list","of","strings","specifying","the","morphological","subcategories","."]
code: def is_var(self):
      return False
  
imports: from abc import ABCMeta, abstractmethod
  from functools import total_ordering
  from nltk.internals import raise_unorderable_types
label_desc: Use image node_id 4 for calling the PrimitiveCategory obj's underlying member method code with example usage: obj.is_var() and returns: False