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<Paper uid="C96-2112">
  <Title>Computing Prosodic Morphology</Title>
  <Section position="9" start_page="666" end_page="667" type="evalu">
    <SectionTitle>
3 Infixation
</SectionTitle>
    <Paragraph position="0"> Standard two-levels models can describe some (;lasses of infixation, but resorting to tile use of ad hoc diacritics which have no linguistic significance, e.g. (Antworth, 1990, p. 156). This section presents a framework for describing infixalion rules using our multi-tape two-level formalism. This is illustrated here by analysing Measures 2 and 8 of the Arabic verb. Measure 2,/kutlib/, is derived by prefixing a mora to the base template under NI?C. The operation is 0 = 'prefix i d and tile rule is ()/R~(a~, Left). The new mora is filled by the spreading of the adjacent (second) consonant. The steps of the derivation are:</Paragraph>
    <Paragraph position="2"> : kuttib Measure 8,/ktutib/, is derived by the aflixation of a {t} to the base template, under NP(\]. The operation is O = 'prefix {t}'; the rule is O/'I,(C, \[,eft;), where C is a consonant. The process is:</Paragraph>
    <Paragraph position="4"> The following two-lew'J grammar builds on the one discussed in section 2. The following lexieal entry gives the Measure 8 morpheums.</Paragraph>
    <Paragraph position="5"> 4: {t} verb_all ix : \[measure=8\] The additional two-level rules are:</Paragraph>
    <Paragraph position="7"> Features: \[measure=8\] where C,i:radical, 'Vi---vowel, A----verbal affix, a, nd X +.</Paragraph>
    <Paragraph position="8"> Rules I1,7-11,8 are measure-strut{tic. Each ruh; is associated with a feature structure which must unify with the feature structures of the affecl;ed lexical entries. This ensures that each rule is applied only to the 1)roper ineasure.</Paragraph>
    <Paragraph position="9"> I1,7 handles Measm'e 2; it represents the operation O -- 'prefix it' and the rule ()/~(a~, Left) by placing B:~I~ in LLC and the residue B/~ in 11LC, and inserting a consonant C (representing t ~) on the surface. The filling of/t by the spreading of the second iadical is achieved by the unification of C in LFx with C in RLC.</Paragraph>
    <Paragraph position="10"> I1,8 takes care of Measure 8; it represents the operation () -- 'prefix {t}' and the rule O/'li(C, Left). Note that one cmmot place B:~\[~ and B/i\[ , in LLC and I/,LC, respectively, as tilt; ease in 1/,7 because the parsing function cuts into the first syllable.</Paragraph>
    <Paragraph position="11"> Oil(; remaining Measul'e has not been discussed, Measure 3. 11; is derived by prefixing the base template with It. The process is as follows:</Paragraph>
    <Paragraph position="13"> a, a, for, ! + PT 8 5 1 2 4 \]ktu\] \]ti!b \] \]ST It Finally, Measures 5 and 6 are derived by prefixing {tu} to Measures 2 and 3, respectively.</Paragraph>
  </Section>
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