Disambiguation and Language Acquisition through th Phrasal Lexicon

the streets, take to swimming, take over, Old, Although this ,'tl)proach proves effective in parsing and in generation, there are two acute problems which still require solutions. First, due to the huge size of the phrasal lexicon, cspeciaIly when considering subtle meanings and idiosyncratic behavior of phrases, encoding of ]exical entries cannot be done manually. Thus, phrase acquisition must be employed to construct the lexicon. Second, when a set of phrases is morpho-syntactically equivalent, disanlbiguation must be perIbrnted by semantic means. These problems are addres scd in the progra n i RI NA.