Here the operation applied is also the deletion of BE.
The book is of importance the book of importance
The information is of some value the information of some value.
The speech was of great power a speech of great power.
The N-structure can be generalised as ' a book of importance.'
(2) The same type of kernel sentence can have other prepositions than 'of'.
The cup
 is for coffee
|  the cup for coffee
| the coffee
 cup
| a coffee cup |
 The bowl
is for sugar
|  the bowl
for sugar
|  the sugar
bowl
| a sugar bowl |
| The bottle
is for milk
|  the bottle
for milk
|  the milk
bottle
| a milk bottle |
The operations are applied on the syntactic level, they are the deletion of BE, the following deletion of the preposition, permutation, and at last generalisation.
* * *
The same operations are applied to sentences with N / V with the suffix -ing.
The hall is for dancing the (a) hall for dancing a dancing hall
The stick is for walking (with) the (a) stick for walking a walking stick, and the like
D. NP is D NP D
The operation applied is also the deletion of BE,
e.g.: The boy is here the boy here
The man is in the garden the man in the garden
The girl is near the window the girl near the window
E. NP1 is like NP2 NP2 of NP1
This transformation is applied to sentences with the preposition 'like.' The operations are: deletion of BE, and after in the permutation of the two NP and the introduction of the preposition' of instead of 'like'.
The woman is like a sparrow sparrow of a woman.
She is like a terrifying mountain a terrifying mountain of a woman.
That plumber is (like) a scoundrel a scoundrel of a plumber.
My wife is like an angel my angel of a wife.
These N transforms have a stylistic value, they are used by writers to portray people, and also in emotional speech.
F. There are two nominalising transformations that can be applied to all kinds of kernel sentences: with BE, with HAVE and with V.
The first, on the morphemic level changes the finite V into V-ing, and NP into a possessive (NP's or a possessive pronoun), which is not obligatory.
This transformation is also applied to sentences with BE:
I remember his (him) being a teacher.
The document being of importance made me lock the drawer very carefully.
The second transformation which can be applied to all kinds of kernel sentences involves on the morphemic level the change of the finite V into V-to, and on the syntactic level the introduction of the functional word ' for' before NP. If NP is a personal pronoun, it is changed into the objective case (morphemic level):
It's important for the man to be wise.
I arranged for the woman to be there at seven.
It's essential/or a book to be of interest.