by nurmeida urwani
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Noun phrase (NP)
Verb phrase (VP)
Preposition phrase (PP)
A syntactic category is a type of
syntactic unit that theories of syntax
Noun (boy, dog, desk, etc).
Verb (run, talk, jump, etc.)
Adjective (happy, brave, short, etc.)
Preposition (to, in, on, etc.)
Adverb (slowly, quietly, always, etc.)
Non lexical categories
Determiner (the, a, this, these, etc.)
Auxiliary verb, Modal (will, can, etc.), Non modal (be have, etc.)
Conjuction (and, but, or,etc.)
Degree word (too, so, very, etc.)
Attempt to specify how the
phrases in a sentence are
NP -- Art N
PP -- P NP
S -- NP VP
Verb phrase (VP)
The syntax tree is a tree
representation of the program
Head: the nucleus around
which a phrase is built.
Specifiers: aspect within a phrase
depands on the category of the
Complements: provide information about
entities and locations whose exixtence is
implied by the head.
constituents or the existence of syntactic units
found in trees can be verified with the help of
The subtitutiontion test: syntactic unit can be replaced by an element such as they, it or do so.
ex: the children stopped at the corner.
they stopped at the corner or the children stopped there.
The movement test: a constituent can be moved as a single unit to a different position within a sentence.
ex: They stopped at the corner
At the corner, they stopped.
The coordination test: a group of words forms a constitution like and, or, but.
ex: the children stopped at the corner and looked both ways.
The formation of questions require use of a
structure building operation called "Move".
Traditionally known as transforms an exiting