A household may either be (a) a one-person household, i.e. a person who makes provision for his or her own food or other essentials for living, without combining with any other person to form part of a multiperson household or (b) a multiperson household, i.e. a group of two or more persons living together who make common provision for food or other essentials for living. A criterion, to determine if persons belong to the same household is to detect whether these persons use a common room. Another important indicator is that the persons share their meals. In this respect, we must note that a live-in housemaid sometimes belongs to the household where she works and sometimes not. It all depends on whether or not the housemaid has her own quarters where she lives, separately and almost independently, after her daily work.