"x1","x2","x3","response","frequency","age"
0,0,0,"a/little",26,0
0,0,0,"important",12,0
0,0,0,"very important",7,0
0,1,0,"a/little",9,1
0,1,0,"important",21,1
0,1,0,"very important",15,1
0,0,1,"a/little",5,2
0,0,1,"important",14,2
0,0,1,"very important",41,2
1,0,0,"a/little",40,0
1,0,0,"important",17,0
1,0,0,"very important",8,0
1,1,0,"a/little",17,1
1,1,0,"important",15,1
1,1,0,"very important",12,1
1,0,1,"a/little",8,2
1,0,1,"important",15,2
1,0,1,"very important",18,2