21716	21	ENSG_PARENT_TRANSCRIPT
21738	24	principal1
21719	535	NM_030815.3
21726	417	GENCODE basic
21726	576	GENCODE primary
548627	1	AC002531.1-005
548627	124	1
548627	126	1
548627	428	tsl3
272999	1	AC009947.3-001
272999	428	tslNA
272999	554	1