Complex sentence: The building started in reign of Reza Shah and by the order of lieutenant general Ahmad Amir-Ahmadi to Red Lion and Sun Society.design was inspired by the theater in St.Petersburg and was conducted with the help of Russian engineers and architects.
Split into simpler sentences: The building started in the reign of Reza Shah under the order of lieutenant general Ahmad Amir-Ahmadi to Red Lion and Sun Society. The design was inspired by the theater in St.Petersburg and was constructed with the help of Russian engineers and architects.