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(c) Aarne Ranta (aarne@cs.chalmers.se) 2002 under GNU GPL.
Phrase: Phrases and Utterances
abstract Phrase = Cat ** {
When a phrase is built from an utterance it can be prefixed
with a phrasal conjunction (such as but, therefore)
and suffixing with a vocative (typically a noun phrase).
fun
PhrUtt : PConj -> Utt -> Voc -> Phr ; -- but come here, my friend
Utterances are formed from sentences, questions, and imperatives.
UttS : S -> Utt ; -- John walks
UttQS : QS -> Utt ; -- is it good
UttImpSg : Pol -> Imp -> Utt; -- (don't) love yourself
UttImpPl : Pol -> Imp -> Utt; -- (don't) love yourselves
UttImpPol : Pol -> Imp -> Utt ; -- (don't) sleep (polite)
There are also 'one-word utterances'. A typical use of them is
as answers to questions.
Note. This list is incomplete. More categories could be covered.
Moreover, in many languages e.g. noun phrases in different cases
can be used.
UttIP : IP -> Utt ; -- who
UttIAdv : IAdv -> Utt ; -- why
UttNP : NP -> Utt ; -- this man
UttAdv : Adv -> Utt ; -- here
UttVP : VP -> Utt ; -- to sleep
UttCN : CN -> Utt ; -- house
UttCard : Card -> Utt ; -- five
UttAP : AP -> Utt ; -- fine
UttInterj : Interj -> Utt ; -- alas
The phrasal conjunction is optional. A sentence conjunction
can also be used to prefix an utterance.
NoPConj : PConj ;
PConjConj : Conj -> PConj ; -- and
The vocative is optional. Any noun phrase can be made into vocative,
which may be overgenerating (e.g. I).
NoVoc : Voc ;
VocNP : NP -> Voc ; -- my friend
}