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And that is all. In other words, it is only true for five of the fourteen moves illustrated in Figure 2 that their head acts are nearly always expressed through choices in MOOD. And in the case of one of the present examples, （2b）, we can only say that it hasused the MOOD because the speaker added I didn't to his initial act, which was simplyNo. （As we shall see in Figure 3 in the next section, Yes and No and ellipted forms suchas I didn't in （2b） are generated through the lexicogrammar in the Cardiff model——asalso are ellipted forms such as Ivy in response to an Initiate such as What's your name？But, while the ellipted forms are generated through the MOOD network, Yes and No arenot. This is because the MOOD network is designed for choices in what we shall now identify as 'full' clauses that are 'independent', i.e. clauses that typically function in exchange structure as the heads of Initiate moves. （We shall return to these two conceptsin the next section.）
All the other forms used in Figure 2 are generated from specialized 'mini-grammars'. These are dedicated to providing appropriate formulaic expressions that realize the particular arrays of meanings that are used at these places in the structure of discourse. Some of these expressions, such as Oh in （lb） and （2c）, do not even useidentifiable English words, and for certain other frequently used 'acknowledgements',such as Uh-huh, there isn't even an agreed spelling.
