Information: - A door is a moving structure used to block off, and allow access to, an entrance to or within an enclosed space, such as a building or vehicle. Doors normally consist of a panel that swings on hinges on the edge, but there are also doors that slide or spin inside of a space. Similar exterior structures to doors are called gates. - A kitchen is a room or part of a room used for cooking and food preparation in a dwelling or in a commercial establishment. In the West, a modern residential kitchen is typically equipped with a stove, a sink with hot and cold running water, a refrigerator, counters and kitchen cabinets arranged according to a modular design. Many households have a microwave oven, a dishwasher and other electric appliances. The main function of a kitchen is serving as a location for storing, cooking and preparing food (and doing related tasks such as dishwashing), but it may also be used for dining, entertaining and laundry. - A baby gate or child safety gate is a protective barrier designed to prevent young children ( aged 6 - 24 months ) from accessing areas of a home where they might be unsafe , such as stairways and kitchens . Baby gates are typically constructed of metal , plastic and / or wood , and can be expanded to fit in a range of doorway widths . They may be designed for use indoors or out , and may be either hardware or pressure - mounted . Pressure - mounted gates are typically held in place by friction with the walls on either side , while hardware - mounted gates are screwed into the wall studs and swing fully open like a door . There are hardware - mounted gates that can be customized to fit wide and irregularly - shaped openings , as well as mesh retractable gates that roll out of the way . Baby gates are also frequently used to contain small pets , especially ones that are not housebroken . A pet gate may not meet the voluntary standard for baby gates . - A gate or gateway is a point of entry to a space which is enclosed by walls. Gates may prevent or control the entry or exit of individuals, or they may be merely decorative. Other terms for gate include yett and port. The word derives from the old Norse "gata", meaning road or path, and originally referred to the gap in the wall or fence, rather than the barrier which closed it. The moving part or parts of a gateway may be called "doors", but used for the whole point of entry door usually refers to the entry to a building, or an internal opening between different rooms. - A refrigerator (colloquially fridge) is a popular household appliance that consists of a thermally insulated compartment and a heat pump (mechanical, electronic or chemical) that transfers heat from the inside of the fridge to its external environment so that the inside of the fridge is cooled to a temperature below the ambient temperature of the room. Refrigeration is an essential food storage technique in developed countries. The lower temperature lowers the reproduction rate of bacteria, so the refrigerator reduces the rate of spoilage. A refrigerator maintains a temperature a few degrees above the freezing point of water. Optimum temperature range for perishable food storage is . A similar device that maintains a temperature below the freezing point of water is called a freezer. The refrigerator replaced the icebox, which had been a common household appliance for almost a century and a half. For this reason, a refrigerator is sometimes referred to as an icebox in American usage. - A hinge is a mechanical bearing that connects two solid objects, typically allowing only a limited angle of rotation between them. Two objects connected by an ideal hinge rotate relative to each other about a fixed axis of rotation. Hinges may be made of flexible material or of moving components. In biology, many joints function as hinges like the elbow joint. Given the paragraphs above, decide what entity has the relation 'instance of' with 'device'.
The answer to this question is:
baby gate