The subjoined context-free rhetoric is ambigous.
A → A A | ( A ) | ( )
Rewrite the rhetoric so that it is unambigious.
A –> AA | (A) | ()
A –> AT | T
T –> A | F
F –> () | a
The plain rhetoric has been extraneous from the vague rhetoric and the specific rhetoric to effect it plain.
Without the aid of the manifest counsel there is no practicable method of making the transformations.
Hence, thse circumlocution of the rhetoric is been removed with the aid of the manifest counsel.