# Multi-Rule Analysis ### Will Styler - LIGN 111 --- ### Today's Plan - Independent Rules vs. Interacting Rules - Creating Derivations to understand interactions - Checking Rule ordering using derivations - 'Feeding' vs. 'Bleeding' rule ordering --- ### Many problems can be solved with a single rule - "What's this alternation? Oh, that. OK." - **... but no languages just have one rule** --- ## Multiple Rules --- ### From here out, we'll be seeing a lot of multi-rule data - ... but not all multi-rule data are alike --- ### English Aspiration and V Lengthening
wʌt
kʰɪ:n
tʰa:ɹ
spu:n
pʰat
spat
ɹɛ:ntʰɪ:ŋ
ɹɪsta:ɹt
kʰju:bə
pʰakʰɪt
sta:ɹ
spɪ:nstə˞
--- ### English Aspiration and Approximant Devoicing
skɹu
splæt
stɹɪp
skut
spæt
stɪk
kʰɹ̥u
pʰl̥æt
tʰɹ̥ɪp
kʰul
pʰæt
tʰɪp
gɹu
bæt
dɪp
ɹut
læs
ɹɪp
--- ### Aspiration and Vowel Length - [-cont,-voice] -> [+spread glottis] / .__ - V -> V: / __[+voice] - **These rules co-occur, but they don't interact!** --- ### Aspiration and Approximant Devoicing - [-cont,-voice] -> [+spread glottis] / .__ - [+son,+cons] -> [-voice] / [+cons, +spread glottis]__ - The aspiration rule is *creating an environment for devoicing to occur!* - The aspiration rule is *feeding* the devoicing rule! - **These rules interact!** --- ## Interacting Rules --- ### Interacting rules - These rules affect *the same segments or features* in a *similar context* - These rules are ordered (e.g. one *must* apply before another) - One rule *creates* or *removes* an opportunity for a later rule to apply - Forms are *derived* through a series of rule applications --- ### Let's talk about derivations - Derivations are a way of showing how multiple rules are ordered - ... and visualizing the consequences of the ordering --- ### English Aspiration and Approximant Devoicing
skɹu
splæt
stɹɪp
skut
spæt
stɪk
kʰɹ̥u
pʰl̥æt
tʰɹ̥ɪp
kʰul
pʰæt
tʰɪp
gɹu
bæt
dɪp
ɹut
læs
ɹɪp
--- ### Aspiration and Approximant Devoicing [-cont,-voice] -> [+spread glottis] / .__ [+son,+cons] -> [-voice] / [+cons, +spread glottis]__ --- ### Aspiration and Approx. Devoicing Derivation (Step 1)
Underlying Form
/plæt/
/splæt/
/pæt/
/læs/
--- ### Aspiration and Approx. Devoicing Derivation (Step 2)
Underlying Form
/plæt/
/splæt/
/pæt/
/læs/
Aspiration
| pʰlæt |
--
| pʰæt |
--
--- ### Aspiration and Approx. Devoicing Derivation (Step 3)
Underlying Form
/plæt/
/splæt/
/pæt/
/læs/
Aspiration
| pʰlæt |
--
| pʰæt |
--
Approx. Devoicing
| pʰl̥æt |
--
--
--
--- ### Aspiration and Approx. Devoicing Derivation (Final)
Underlying Form
/plæt/
/splæt/
/pæt/
/læs/
Aspiration
| pʰlæt |
--
| pʰæt |
--
Approx. Devoicing
| pʰl̥æt |
--
--
--
Surface Form
[pʰl̥æt]
[splæt]
[pʰæt]
[læs]
--- ### Derivations have... - The /Underlying form/ for the word on the top - The [Surface form] at the bottom - One additional row per named interacting rule - Each cell filled in either with the new form, or a '--' to indicate it doesn't apply --- ### We're going to want *lots* of derivations from you - Any time you have interacting rules, give derivations - Derive examples of forms which... - Show the alternations - Show *no* alternations - Demonstrate why the ordering is what it is - Demonstrate why the ordering couldn't be otherwise - Feel 'weird' - No need for derivations for single (or non-interacting) rules --- ### Always give us derivations of forms that explain why the rules are ordered as they are
--- ### Why do we make derivations? - To explain your analysis to others - To make clear the steps of the process - **To help you think through the problems!** --- ### Always try to change your ordering around if something isn't working! - Let's try the other ordering! --- ### Aspiration and Approximant Devoicing [-cont,-voice] -> [+spread glottis] / .__ [+son,+cons] -> [-voice] / [+cons, +spread glottis]__ --- ### Aspiration and Approx. Devoicing INCORRECT
Underlying Form
/plæt/
/splæt/
/pæt/
/læs/
--- ### Aspiration and Approx. Devoicing INCORRECT
Underlying Form
/plæt/
/splæt/
/pæt/
/læs/
Approx. Devoicing
--
--
--
--
--- ### Aspiration and Approx. Devoicing INCORRECT
Underlying Form
/plæt/
/splæt/
/pæt/
/læs/
Approx. Devoicing
--
--
--
--
Aspiration
| pʰlæt |
--
| pʰæt |
--
--- ### Aspiration and Approx. Devoicing INCORRECT
Underlying Form
/plæt/
/splæt/
/pæt/
/læs/
Approx. Devoicing
--
--
--
--
Aspiration
| pʰlæt |
--
| pʰæt |
--
Surface Form
[pʰlæt]
[splæt]
[pʰæt]
[læs]
--- ### Aspiration and Approx. Devoicing Derivation (Final)
Underlying Form
/plæt/
/splæt/
/pæt/
/læs/
Aspiration
| pʰlæt |
--
| pʰæt |
--
Approx. Devoicing
| pʰl̥æt |
--
--
--
Surface Form
[pʰl̥æt]
[splæt]
[pʰæt]
[læs]
--- ### Ordering Approximant Devoicing first breaks things! - Aspiration *needs* to come first - Aspiration *feeds* the approximant devoicing rule - The derivation lets us see where things went wrong --- ### Let's try this again - You should always provide examples, plural. --- ## The English Plural --- ### Our previous analysis /s/ -> [z] / [C +voice]__ /s/ -> [ɪz] / [strident C]__ /s/ -> [s] / Elsewhere --- ### We can do better, with interacting rules - Assume that the plural is underlyingly /z/ - **Voicing Assimilation:** [-son] -> [-voice] / [-voice]__# - **Vowel Epenthesis:** ∅ -> [-front,-back] / [+coronal,+strident]__[+coronal,+strident]# --- ### English Plural Derivation
Underlying Form
/kæt + z/
/dag + z/
/dɪʃ + z/
--- ### English Plural Derivation
Underlying Form
/kæt + z/
/dag + z/
/dɪʃ + z/
V Epenthesis
--
--
| dɪʃɪz |
--- ### English Plural Derivation
Underlying Form
/kæt + z/
/dag + z/
/dɪʃ + z/
V Epenthesis
--
--
| dɪʃɪz |
Voicing Assim.
| kæts |
--
--
--- ### English Plural Derivation (Final)
Underlying Form
/kæt + z/
/dag + z/
/dɪʃ + z/
V Epenthesis
--
--
| dɪʃɪz |
Voicing Assim.
| kæts |
--
--
Surface Form
[kæts]
[dagz]
[dɪʃɪz]
--- ### Could we reverse the ordering of the rules? --- ### English Plural INCORRECT Derivation
Underlying Form
/kæt + z/
/dag + z/
/dɪʃ + z/
--- ### English Plural INCORRECT Derivation
Underlying Form
/kæt + z/
/dag + z/
/dɪʃ + z/
Voicing Assim.
| kæts |
--
| dɪʃs |
--- ### English Plural INCORRECT Derivation
Underlying Form
/kæt + z/
/dag + z/
/dɪʃ + z/
Voicing Assim.
| kæts |
--
| dɪʃs |
V Epenthesis
--
--
| dɪʃɪs |
--- ### English Plural INCORRECT Derivation
Underlying Form
/kæt + z/
/dag + z/
/dɪʃ + z/
Voicing Assim.
| kæts |
--
| dɪʃs |
V Epenthesis
--
--
| dɪʃɪs |
Surface Form
[kæts]
[dagz]
[dɪʃɪs]
--- ### Putting voicing assimilation first breaks things! - Voicing assimilation needs to come *after* epenthesis - Epenthesis *removes* a context where voicing assimilation *would* apply - Epenthesis *bleeds* the voicing assimilation rule --- ### So, derivations aren't just for us - They're a good problem solving tool - They help you test if your ordering is correct - They make rule interactions clear! --- ### Tips for dealing with multi-rule datasets --- ## Types of Rule Interactions --- ### We've touched on two ways that rules can interact --- ### One rule *provides a context for the other to apply*
Underlying Form
/plæt/
/splæt/
/pæt/
/læs/
Aspiration
| pʰlæt |
--
| pʰæt |
--
Approx. Devoicing
| pʰl̥æt |
--
--
--
Surface Form
[pʰl̥æt]
[splæt]
[pʰæt]
[læs]
--- ### One rule *removes a context* where the other one *would* apply
Underlying Form
/kæt + z/
/dag + z/
/dɪʃ + z/
V Epenthesis
--
--
| dɪʃɪz |
Voicing Assim.
| kæts |
--
--
Surface Form
[kæts]
[dagz]
[dɪʃɪz]
--- ### 'Feeding' and 'Bleeding' order - A rule which provides a context for another to apply *feeds* the other rule - A rule which *removes* a context where another *would* apply *bleeds* the other rule - *Always be on the lookout for feeding and bleeding relationships!* --- ### Wrapping up - Not all problem sets with multiple rules show interactions - Derivations are a powerful tool for understanding interactions - Always double-check your rule orderings if you're having problems - Some rules 'feed' each other, some rules 'bleed' each other --- ### Next time - The return of Russian, and it's bringing multiple rules! - (From Russia, with Derivations!) ---
Thank you!
--- ### In case we're done early...
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