They have discussed that, whenever any neighbour or dweller had bought any animal and brought it to the collective herd, he shall pay to the sepherd [the amount correspoding to] the respective rounds, that is, the first round by the 15th of May, the second by the 15th of September, and the third one by the 15th of January; and, had someone sold [an animal], he shall be entitled to get back the corresponding share.