Heuristic
: the use of language to gain knowledge about the environment
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imaginative
: the use of language to tell stories or jokes, and to create an imaginary environment
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instrumental: the use of language to express their needs
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interaction
: the use of language to make contact with others, forming relationship(s)
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personal
: the use of language to express feelings, opinions and identities of individuals
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regulatory: the use of language to tell others what to do
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representational
: the use of language to convey facts and information
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