In the middle of a 田 rice field at the top of a huge 十 cross is a 吅 boombox that instructs everyone how to farm. It 單 lists out everything you need to do, one after another: "first plant the seed, then cover it in dirt" and so on and so forth. For those who can't hear, nailed to the middle of the cross is a written 單 list of what the 吅 boombox says.