<prompt> Translate the following text to EnglishBaada ya kujadili kwa muda mrefu nguvu ya kudumu ya maonyesho yake ya miaka ya 60, wakosoaji wengi sasa wanahitimisha sanaa yake itaendelea.  <response>: Having endlessly debated the staying power of his 60s comic-strip sendups, most critics now conclude his art will last. 