[{"Bold_text": "adjective", "List Items": ["pertaining to or dealing with elements ,rudiments, or first principles:an elementary grammar.", "of or relating to an elementary school elementary school:elementary teachers.", "of the nature of an ultimate constituent; simple or uncompounded.", "pertaining to the four elements, earth, water, air, and fire, or to the great forces of nature; elemental .", "Chemistry.of or noting one or more elements."]}]