| other,9-1-J89-4003,ak | presented to characterize the class of <term> | languages | </term> obtained by adding <term> reduplication | #20104 A model is presented to characterize the class of languages obtained by adding reduplication to context-free languages. | |
| other,3-3-J89-4003,ak | </term> in a new way . The class of <term> | languages | </term> generated is shown to lie strictly | #20138 The class of languages generated is shown to lie strictly between the context-free languages and the indexed languages. | |
| other,9-4-J89-4003,ak | capable of accommodating the sort of <term> | reduplications | </term> that have been observed to occur | #20163 The model appears capable of accommodating the sort of reduplications that have been observed to occur in natural languages, but it excludes many of the unnatural constructions that other formal models have permitted. |
