The Discovery of the Enigma in a grammatical Point

The enigma that has preoccupied grammarians for more than a century is due to lack of awareness of linguistic government. What is meant by government is that if a noun phrase occurs in the dependent and independent clauses of a complex sentence with different functions, the noun phrase with a marker (ي in مردي) governs. The enigma can be solved with an example. In the sentence همان مردي كه روزنامه مي‌خواند دوست من است., the word مردي is indefinite for the dependent clause and definite for the main clause. Because the definite noun does not have a sign in Persian and the indefinite noun does (ي in مردي), the indefinite noun governs.