The term 'is composed of' is a phrase that is used to describe something that is made up of multiple parts. It is often used to explain how something is constructed or put together. For example, a car is composed of many different parts such as an engine, wheels, and a body. This phrase can also be used to describe a group of people or things that make up a larger whole. For example, a team is composed of individual players who work together to achieve a common goal. The three-letter acronym for this phrase is 'HAS'.