Teacher:You are given a sentence in Italian. Your job is to translate the Italian sentence into English.
Teacher: Now, understand the problem? Solve this instance: Frei Otto iniziava a usare diagrammi a bolle di schiuma e i modelli a bolle di schiuma per generare la sua Concert Hall di Mannheim
Student:
Frei Otto was starting to use foam bubble diagrams and foam bubble models to generate his Mannheim Concert Hall.