5 28
class:			1,2,3;
hobby:			1,2,3;
age:			1,2,3,4;
educational level:	1,2,3,4;
marital status:		1,2,3,4;
1, 1, 1, 1, 2;
1, 1, 1, 2, 1;
1, 1, 2, 1, 1;
1, 1, 1, 1, 3;
1, 1, 1, 3, 1;
1, 1, 3, 1, 1;
1, 1, 1, 3, 3;
1, 1, 3, 1, 3;
1, 1, 3, 3, 1;
2, 1, 2, 2, 1;
2, 1, 2, 1, 2;
2, 1, 1, 2, 2;
2, 1, 2, 2, 3;
2, 1, 2, 3, 2;
2, 1, 3, 2, 2;
2, 1, 2, 3, 3;
2, 1, 3, 2, 3;
2, 1, 3, 3, 2;
1, 1, 1, 3, 2;
2, 1, 3, 2, 1;
1, 1, 2, 1, 3;
2, 1, 2, 3, 1;
1, 1, 1, 2, 3;
2, 1, 3, 1, 2;
1, 1, 1, 1, 1;
2, 1, 2, 2, 2;
1, 1, 3, 3, 3;
3, 1, 4, 4, 4;