What about the colour-samples that A shows to B, – do they belong to the language? As you like. They don't belong to the verbal || our spoken language; but if I say to someone, “Pronounce
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the word ‘that || the‘”, you will count the second “the” also as || call the second “the” also a part of the sentence. Yet it plays a very similar role to that of a coloured square || bit of paper in the language game (11): it is a sample of what the other person is supposed to say, just as the coloured square is a sample of what B is supposed to bring.
     It is the most natural thing and it causes the least confusion if we reckon || count the samples among the instruments of the language.