AdjPÆ
adj
NP
ì
í
î
ü
ý
þ
PPÆprep NP
VÆ
V
Vprt+
ì
í
î
ü
ý
þ
NÆgoons, bow ties, number, Pizza Hut, Buggsy, gun, table
VÆlooked + prt, put
detÆthe
prepÆwith, for, on
prtÆup
These rules have value beyond their ability to describe sentences 1 through
- They also help us understand that, as sentences become more complex, the
grammar must become more flexible if it is to describe a variety of structures.
NP and VP, for example, may have several elements, but they are all optional
except for the core features, N and V, respectively. Perhaps the larger goal of
phrase-structure grammar is becoming clear. Individual sentence grammars are
revealing, but the process of producing a new set of rules for all the possible in-
dividual sentences in English (an infinite number) is not practical. Moreover, it
does not provide a coherent picture of the whole language. The goal, therefore,
is to examine a wide range of sentences to develop a set of highly generalizable
statements that describe most (but not necessarily all) of the grammatical
sentences that speakers of the language normally produce.
APPLYING KEY IDEAS
Directions: Write separate phrase-structure rules for each of the following
sentences:
- A bug danced across my palm.
- The cold wind blew from the distant lake.
- An old man asked for a drink at the bar.
- Buggsy put on a coat and walked into the desert.
5.Fritz really liked Macarena.
106 CHAPTER 4