All three signs are examples of subordinated compounds. They are each made up of two signs that exist as lexical signs, that is, that can be produced in isolation. The final sign in each compound is the general SASL noun person. In all three cases, the first part of the compound is also a noun and it modifies/specifies the noun person. The whole designates a person who deals with the aspect or property expressed by the first part. The resulting compound is also a noun.

Another example of such a subordinate compound is from NGT. Here a verb (first part) is combined with the one-handed NGT sign person. Actually, in this and other NGT examples, it might be tempting to analyze the word formation process as an instance of derivation, as the word formation process used in the English translation is derivation (by means of the bound suffix –er). However, it should be clear that the analysis should not be based on the translation but on properties of the signs involved.