... Simple Theme or Single Theme. When there is more than one element functioning as Theme in the clause, we say that the clause consists of Multiple Theme. Multiple Theme includes a topical Theme ... components: textual Theme (continuative, structural and conjunctive), Interpersonal Theme (vocative, modal, mood-marking) and Topical Theme, which represent the three metafunctions - textual, interpersonal ... and the variables of commodity (information and goods and services), when taken together, define the four basic speech functions: giving information, demanding information, giving goods-and-services...