How Shayri People Do Duplicate?


How poem or shayri website refrain there website from getting google penalty from duplication?
Most Of the shayris are already posted in other website then how the one who copy or type them in their website not get duplicate issue? and how they get adsense approved too? adsense look for unique content right?


Many actually do shayari or quotes in form of images and as search bots cannot read what is written at images, so this prevents duplicate content issues a bit