Halliday & Matthiessen (2014: 47):
If we take ‘text’ to mean an instance of the system of a language operating in a context of situation, then we can ask: (1) how it relates to instances of other semiotic systems operating in the same context of situation, and (2) how semiotic labour is divided among these different semiotic systems – how they complement one another.
Blogger Comment:
Theoretical caveat: Here text (Token) is construed metaphorically as a material Actor, and the cultural situation (Value) it realises is metaphorically construed as its Location.