[If] one slaughters from the sides, his slaughtering is valid; [if] one performs melikah from the sides, his melikah is invalid. [If] one slaughters from the nape, his slaughtering is invalid; [if] one performs melikah from the nape, his melikah is valid. [If] one slaughters from the throat, his slaughtering is valid; [if] one performs melikah from the throat, his melikah is invalid; because the entire nape is valid for melikah, and the entire throat is valid for slaughtering. Thus, what is valid for slaughtering is invalid for melikah, [and] what is valid for melikah is invalid for slaughtering.