Complex sentence: Agache began gymnastics at the age of 6 with Mihai Agoston and Maria Florescu, and was later coached by Bela and Marta Karolyi before their defection to the United States and later on by Octavian Bellu, Adrian Goreac and Maria Cosma.
Split into simpler sentences: Agache began gymnastics at the age of 6 with Mihai Agoston and Maria Florescu. She was coached by Béla and Márta Károlyi before their defection to the United States, and later by Octavian Bellu, Adrian Goreac and Maria Cosma.