Question: Is This the Life We Really Want?, is the fifth studio album by English rock musician and former Pink Floyd bassist and vocalist Roger Waters, it was his first studio album in 12 years since Ça Ira, is the fourth studio album by Waters, it is an opera in how many acts?
Sentence (from "Radio K.A.O.S."): The album explores Billy's mind and view on the world through an on-air conversation between him and Jim, a disc jockey at a local fictitious radio station named Radio KAOS.
Relevant evidence: No