membered,"['threemembered ', '3membered ', 'fourmembered ', '4membered ', 'fivemembered ', '5membered ', 'sixmembered ', '6membered ', 'sevenmembered ', '7membered ', 'eightmembered ', '8membered ', 'ninemembered ', '9membered ', 'tenmembered ', '10membered ', 'memberless ']"