groupname,groupingname
GR_11,AG_1
GR_21,AG_2
GR_22,AG_2
GR_31,AG_3
GR_32,AG_3
GR_33,AG_3
GR_41,AG_4
GR_42,AG_4
GR_43,AG_4
GR_44,AG_4
GR_X,
,AG_X
GR_a,AG_1
GR_Y,
GR_b,AG_2
,AG_Y
GR_c,AG_3