A sign necessarily involves “expression” and “content”. Theories regarding signs as entities cannot explain the mechanism of how the relationship of the two parameters come into being. Actions take place in certain context. And the relationship mentioned above comes into being by way of intention. Signs thus involve five basic parameters as. a “person” relates an “expression” to a “content” by way of his “intention” in certain “context”. Sign actions that relate to one another through these five parameters. It is possible to foreground the systematic of sign actions by studying “the set of sign actions related to the same expression”.