other,0-1-P83-1004,ak method </term> for <term> GPSG </term> . <term> Metagrammatical formalisms </term> that combine <term> context-free phrase
lr,4-1-P83-1004,ak Metagrammatical formalisms </term> that combine <term> context-free phrase structure rules and metarules ( MPS grammars ) </term> allow concise statement of <term> generalizations
other,18-1-P83-1004,ak ) </term> allow concise statement of <term> generalizations </term> about the <term> syntax </term> of <term>
other,21-1-P83-1004,ak <term> generalizations </term> about the <term> syntax </term> of <term> natural languages </term> .
other,23-1-P83-1004,ak </term> about the <term> syntax </term> of <term> natural languages </term> . <term> Unconstrained MPS grammars
lr,0-2-P83-1004,ak </term> of <term> natural languages </term> . <term> Unconstrained MPS grammars </term> , unfortunately , are not computationally
other,12-3-P83-1004,ak constraining them , basing our assessment on <term> computational tractability </term> and <term> explanatory adequacy </term>
other,15-3-P83-1004,ak computational tractability </term> and <term> explanatory adequacy </term> . We show that none of them satisfies
other,18-4-P83-1004,ak directions for research on alternative <term> metagrammatical formalisms </term> . By exploring the relationship between
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