[{"Bold_text": "noun", "List Items": ["any of various poplars, as Populus tremula,of Europe, and P. tremuloidesquaking aspenor P. albawhite aspen,of America, having soft wood and alternate ovate leaves that tremble in the slightest breeze."]}, {"Bold_text": "adjective", "List Items": ["of or relating to the aspen.", "trembling or quivering, like the leaves of the aspen."]}, {"Bold_text": "noun", "List Items": ["a town in central Colorado: ski resort."]}]