A generic framework for Arabic to English machine ... - Acsu Buffalo
A generic framework for Arabic to English machine ... - Acsu Buffalo
A generic framework for Arabic to English machine ... - Acsu Buffalo
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
3.4. LEXICAL REPRESENTATIONS FOR VERBS<br />
An important feature of the layered structure of the clause is the differential treatment<br />
given <strong>to</strong> opera<strong>to</strong>rs like tense, aspect and illocutionary <strong>for</strong>ce, and the same contrast is a<br />
vital part of the layered structure of the noun phrase. NP opera<strong>to</strong>rs include determin-<br />
ers (articles, demonstratives, deictics), quantifiers, negation and adjectival and nominal<br />
modifiers (Van Valin and LaPolla 1997).<br />
3.3.1 NP headed<br />
Pronouns can be classified in<strong>to</strong> a number of subtypes: personal pronouns, including pos-<br />
sessive pronouns (PRO), e.g. I liked her book; relative pronouns (PRO REL), e.g. the<br />
book which I bought; demonstrative pronouns (PRO DEM), e.g. That pleased Mary; WH-<br />
pronouns (PRO wh ), e.g. who did Fred see?; and expletive pronouns (PRO EXP ), e.g. it<br />
rained.<br />
3.4 Lexical representations <strong>for</strong> verbs<br />
These distinctions among the four basic Aktionsart types may be represented <strong>for</strong>mally<br />
as in Table 3.2. The term Aktionsart refers <strong>to</strong> the means of a capturing the distinctions<br />
between basic states of affairs, or events, of individual verbs. These representations<br />
are called logical structures. Following the conventions of <strong>for</strong>mal semantics, constants<br />
(which are normally predicates) are presented in boldface followed by a prime, whereas<br />
variable elements are presented in normal typeface. The elements in boldface and prime<br />
are part of the vocabulary of the semantic metalanguage used in the decomposition; they<br />
are not words from any particular human language.<br />
Table 3.2: Lexical representations <strong>for</strong> the basic Aktionsart classes<br />
Verb class Logical structure<br />
State predicate’ (x) or (x, y)<br />
Activity do’ (x, [predicate’(x) or (x, y)])<br />
Achievement INGR predicate’ (x) or (x, y)<br />
Accomplishment BECOME predicate’ (x) or (x, y)<br />
38