Simplify the following text for a Grade 8 native English-speaking person.
Original: Taichung County controlled three township-level cities ( ç # è 1\/2 å ) , five urban townships ( é ) , and 13 rural townships ( é ) , which , at the time of the merger with Taichung City , were converted into 21 districts of the new municipality .
Simplified: Taichung County controls three township-level cities ( ç # è 1\/2 å ) , five townships ( é ) , and 13 rural townships ( é ) .