If it is said that every household must have a fish on the east of the kitchen. Fermented foods are a major component of all types. Thailand as the region with the sauce.
If it is said that people in every household must have a regular fish kitchen. Fermented fish and used as a core component of any food category is the same as that of the Central Thai fish sauce is used.
If I were to say that the inhabitants of the northeast every household must have a collarbone collarbone. Regular use kitchen is a key component of any type of food like the Thai public sector use fish sauce.