sentences:  Standards for censorship were not well understood, and even works such as Sakutarō Hagiwara's (which became considered a masterpiece post-World War II) had its first edition banned from sale.In the 1920's, major publishers began to take preemptive measures to avoid censorship and implemented "private perusal".In a system of prepublication self-censorship, they consulted official censors and erased words from their content that would have faced scrutiny for obscenity before they were even printed.