41. Common nouns are in turn divided into concrete and abstract nouns, and grammatically into count nouns and mass nouns.42. Although the term Soviet came to be treated as a proper noun, is it not originally a common noun ? 43. But you can't use a common noun like " magistrate " or " magistrates " in that sort of construction. 44. In such cases the common noun may determine the kind of entity, and a modifier determines the unique entity itself. 45. If the possessor is a common noun , it will be introduced by a determiner, but without an oblique case marker. 46. An exception to the hyphenation of compounds with a proper name is when the proper name contains an uncapitalized common noun . 47. Am I correct in thinking that the Union of Soviet Socialist Republics is actually a common noun , not a proper noun? 48. There are proper nouns ( " names " for unique entities ) and common nouns ( words for general concepts ). 49. In languages where the distinction is made, unit names are common nouns ( i . e . not proper nouns ). 50. This happened to be a large process, and the most common noun classes started to cause the least represented to disappear.