On the basis of those three trichotomies we may consider 3x3x3=27 different combinations. But just the following ten classes of signs are possible. For the reasons for this, see Peirce (1931-60, 2.228-276).

Peirce's Classification of Signs.

Peirce also gives us the following examples of signs belonging to different classes. (I) A feeling of "red" is a Rhematic Iconic Qualisign. (II) An individual diagram is a Rhematic Iconic Sinsign. It will embody a Qualisign. (III) A spontaneous cry is a Rhematic Indexical Sinsign. It necessarily involves an Iconic Sinsign. (IV) A weathercock is a Dicent Indexical Sinsign. It must involve an Iconic Sinsign to embody information and a Rhematic Indexical Sinsign to indicate the object to which the information refers. (V) A diagram, apart from its factual individuality, is a Rhematic Iconic Legisign. Each of its occurrences will be an Iconic Sinsign. (VI) A demonstrative pronoun is a Rhematic Indexical Legisign. Each occurrence of it will be a Rhematic Indexical Legisign. The interpretant of a Rhematic Indexical Legisign represents it as an Iconic Legisign. (VII) A street cry is a Dicent Indexical Legisign. It must involve an Iconic Legisign to signify the information concerning the object and a Rhematic Indexical Legisign to denote the subject of the information. Each occurrence of it will be a Dicent Sinsign. (VIII) A common noun is a Rhematic Symbolic Legisign. (IX) A proposition is a Dicent Symbolic Legisign. (X) An Argument is a Symbolic Legisign. Each of its occurrences will be a Dicent Sinsign.