Difference between revisions of "Morphotactic constraints with twol"
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This page describes how to use [[twol]] to implement morphotactic constraints. These are useful for modelling prefix and circumfix morphology. |
This page describes how to use [[twol]] to implement morphotactic constraints. These are useful for modelling prefix and circumfix morphology. |
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==Prefixes== |
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Let's suppose you have a language like [[Avar]], where the first part of the verb stem changes for gender, for example: |
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{|class=wikitable |
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!colspan=3| бицине "to speak" |
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|- |
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| бицуна || {{sc|neu}}-иц-{{sc|aor}} || it speaks |
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|- |
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| вицуна || {{sc|msc}}-иц-{{sc|aor}} || he speaks, I (m.) speak, you (m.) speak |
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|- |
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| йицуна || {{sc|fem}}-иц-{{sc|aor}} || she speaks, I (f.) speak, you (f.) speak |
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|- |
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| рицуна || {{sc|pl}}-иц-{{sc|aor}} || they speak |
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|- |
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|} |
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So, the obvious thing would be just to put all of the forms in the lexicon, like: |
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<pre> |
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LEXICON AOR |
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%<aor%>:уна # ; |
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LEXICON Verbs |
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бицине%<v%>%<tv%>%<nt%>:биц AOR ; |
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бицине%<v%>%<tv%>%<m%>:виц AOR ; |
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бицине%<v%>%<tv%>%<f%>:йиц AOR ; |
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бицине%<v%>%<tv%>%<pl%>:риц AOR ; |
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</pre> |
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But this is inefficient! What we would like to do is have a single lexicon for the gender prefixes, |
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<pre> |
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LEXICON AOR |
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%<aor%>:уна # ; |
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LEXICON Prefixes |
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%<nt%>:б%> Verbs ; |
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%<m%>:в%> Verbs ; |
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%<f%>:й%> Verbs ; |
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%<pl%>:р%> Verbs ; |
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LEXICON Verbs |
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бицине%<v%>%<tv%>:иц AOR ; ! "говорить" |
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</pre> |
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This is great, but we have a problem... The tag for our prefix is in the wrong place! |
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<pre> |
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<nt>бицине<v><tv><aor>:б>ицуна |
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<m>бицине<v><tv><aor>:в>ицуна |
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<f>бицине<v><tv><aor>:й>ицуна |
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<pl>бицине<v><tv><aor>:р>ицуна |
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</pre> |
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==See also== |
==See also== |
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Revision as of 17:46, 4 February 2017
This page describes how to use twol to implement morphotactic constraints. These are useful for modelling prefix and circumfix morphology.
Prefixes
Let's suppose you have a language like Avar, where the first part of the verb stem changes for gender, for example:
| бицине "to speak" | ||
|---|---|---|
| бицуна | neu-иц-aor | it speaks |
| вицуна | msc-иц-aor | he speaks, I (m.) speak, you (m.) speak |
| йицуна | fem-иц-aor | she speaks, I (f.) speak, you (f.) speak |
| рицуна | pl-иц-aor | they speak |
So, the obvious thing would be just to put all of the forms in the lexicon, like:
LEXICON AOR %<aor%>:уна # ; LEXICON Verbs бицине%<v%>%<tv%>%<nt%>:биц AOR ; бицине%<v%>%<tv%>%<m%>:виц AOR ; бицине%<v%>%<tv%>%<f%>:йиц AOR ; бицине%<v%>%<tv%>%<pl%>:риц AOR ;
But this is inefficient! What we would like to do is have a single lexicon for the gender prefixes,
LEXICON AOR %<aor%>:уна # ; LEXICON Prefixes %<nt%>:б%> Verbs ; %<m%>:в%> Verbs ; %<f%>:й%> Verbs ; %<pl%>:р%> Verbs ; LEXICON Verbs бицине%<v%>%<tv%>:иц AOR ; ! "говорить"
This is great, but we have a problem... The tag for our prefix is in the wrong place!
<nt>бицине<v><tv><aor>:б>ицуна <m>бицине<v><tv><aor>:в>ицуна <f>бицине<v><tv><aor>:й>ицуна <pl>бицине<v><tv><aor>:р>ицуна
