other,2-1-P03-1051,bq | stemmer </term> above . We approximate <term> | Arabic 's rich morphology | </term> by a <term> model </term> that a <term> | #4602 We approximateArabic 's rich morphology by a model that a word consists of a sequence of morphemes in the pattern prefix*-stem-suffix* (* denotes zero or more occurrences of a morpheme). |