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Semiotics, also called semiotic studies or semiology, is the study of cultural sign processes (semiosis), analogy, metaphor, signification and communication, signs and symbols. Semiotics is closely related to the field of linguistics, which in its part, studies the structure and meaning of language more specifically. Semiotics is usually divided into three branches, which include: Semantics: Relation between signs and the things to which they refer; their denotata, or meaning Syntactics: Relations among signs in formal structures Pragmatics: Relation between signs and the effects they have on the people who use them Semiotics is frequently seen as having important anthropological dimensions; for example, Umberto Eco proposes that every cultural phenomenon can be studied as communication. However, some semioticians focus on the logical dimensions of the science. They examine areas belonging also to the natural sciences – such as how organisms make predictions about, and adapt to, their semiotic niche in the world (see semiosis). In general, semiotic theories take signs or sign systems as their object of study: the communication of information in living organisms is covered in biosemiotics or zoosemiosis. Syntactics is the branch of semiotics that deals with the formal properties of signs and symbols. More precisely, syntactics deals with the “rules that govern how words are combined to form phrases and sentences.” Charles Morris adds that semantics deals with the relation of signs to their designata and the objects which they may or do denote; and, pragmatics deals with the biotic aspects of semiosis, that is, with all the psychological, biological, and sociological phenomena which occur in the functioning of signs.