xsd:string 2 c 6; 8 c 1,3; 11 c 5, 6, 15; 16 c 3; 19 c 4; 20 c 2, 3; 22 c 7; 23 c 2; 26 c 3; 30 c 3; 32 c 2; 33 c 2; 34 c 2; 35 c 1; 39 c 2; 40 c 1; 43 c 2; 51 c 7; 53 c 1, 2.