1.2 nyob rau hauv 1 tsim, 1 yam khoom sib txuas los ntawm kev kho daim kab xev thiab cov nplaum nplaum.
2. Ntxim hlub bow-khi tsim.
3. Kho daim kab xev tuaj yeem npog qhov yuam kev sau tag nrho, rov sau dua tam sim; daim kab xev nplaum: lo tam sim ntawd thaum koj siv nws, cov ntaub ntawv tiv thaiv, yuav tsis ua rau koj txhais tes qias neeg.