Provided is an organic light-emitting diode display device having sub-pixels with four colors. Preferred R is a hydrolyzable protecting group. The conformed dimensional objects are parsed into an n-tuple that includes a pointer to one of the non-dimensional data objects, a probability that a non-dimensional data object has been associated with a correct dimension object, and a weighting factor of importance of the conformed dimensional object. The fluoroaluminosilicate glass powder is produced by mixing an aqueous solution of a lanthanum compound and a fluoroaluminosilicate glass powder not containing lanthanum, and heating them. The elastic peg includes a flexible head portion abutting the disk drive, and a handle portion extending into the hole.