Complex sentence: An exhibit is an object, work of art, activity, artifact or poster designed to demonstrate a concept or show an example, usually in a public space or a cultural or educational setting such as a museum, archive or library.
Split into simpler sentences: An exhibit is an object, work of art, activity, artifact or poster designed to demonstrate a concept or show an example. Exhibits are usually housed and shown in a cultural or educational setting such as a museum, park, archive or library.