1	grp1	11	First group
2	grp1	12	First group
3	grp2	21	Second group
4	grp2	22	Second group
5	grp3	24	Third group
6	grp2	23	Second group
7	grp3	31	Third group
8	grp3	32	Third group
9	grp4	41	Fourth group
10	grp4	42	Fourth group
