Complex sentence: The city considers itself as the inspiration for Gilbert and Sullivan's still-popular 1885 comic opera, "The Mikado"; the name of the opera's setting, "Titipu", is pronounced "Chichipu" in Japanese.
Split into simpler sentences: The city considers itself to be the inspiration for Gilbert and Sullivan's still-popular 1885 comic opera, "The Mikado". This is because the name of the setting of that show, "Titipu", is pronounced "Chichipu" in Japanese.