Ключевые слова: black hole, body, chlorine content, clean, cleaning, consumption, drain, drink, event horizon, food, gravitation, h2o, hole, household, household cleaning, hydrogen, hygiene, kitchen, kitchen sink, liquid, massive, metal, metallic, metaphor, nirvana, oxygen, pollution, potable, purification, purity, resource, rinse, singularity, sink, space, star, state of aggregation, swirl, transparent, wash, washing, water, water consumption, wet,