[['pinn rank', 'std rank', 'name', 'pinnacle height ft (m)', 'standard height ft (m)', 'floors', 'year'], ['1', '1', 'willis tower', '1730 (527)', '1451 (442)', '108', '1974'], ['2', '4', 'john hancock center', '1500 (457)', '1127 (344)', '100', '1969'], ['3', '2', 'trump international hotel and tower', '1389 (423)', '1389 (423)', '93', '2009'], ['4', '3', 'aon center', '1136 (346)', '1136 (346)', '83', '1973'], ['5', '5', 'franklin center north tower', '1007 (307)', '887 (270)', '61', '1989'], ['6', '6', 'two prudential plaza', '995 (303)', '995 (303)', '64', '1990'], ['7', '7', '311 south wacker drive', '961 (293)', '961 (293)', '65', '1990'], ['8', '42', 'one prudential plaza', '912 (278)', '601 (183)', '41', '1955'], ['9', '8', '900 north michigan', '871 (266)', '871 (266)', '66', '1989'], ['10', '9', 'water tower place', '859 (262)', '859 (262)', '74', '1976']]
5 of the Building are thirty Year old or younger
5 of the [ENT] are thirty [ENT] old or younger