IFS Driven by Parts of Speech

One of the first possibilities that occurs is to assign bins by parts of speech. For example, one bin might be for nouns, one for verbs, one for adverbs and adjectives, and one for prepositions and conjunctions. This method was used to generate the pictures below. The upper panel is this driven IFS rendition of Emerson's "Circles," the lower panel of Hawthorne's "Birthmark."

Can you tell which bin corresponds to wich part of speech? This may be the most interesting question associated with such plots, because the rules of grammar place some restrictions on combinations of parts of speech. Perhaps strings of words ordered randomly, except for grammatical constraints, would exhibit many of the same patterns.

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