Word-form root as internally defined by the morphological analyzer. Since the Czech morphological processor we use does not contain a phonological element, no root changes are possible during processing, and therefore the "root" as found here is a rather technical root, defined as the part of the word string which does not change within a paradigms (as defined as the full or partial paradigm in the morphological dictionary).
Only one <R>/<E> pair is generated for every word form (<f>), i.e. for every set of <MMl>s. If there are multiple analyses of the input word form, resulting in different segmentation to root and ending (<E>), the shortest root wins (i.e., the longest ending wins).
It is unused in the PDT; it has some importance for checking purposes only and/or for experiments with language modeling in speech recognition for reducing the size of a dictionary.
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