##gff-version 3
test_seq	.	exon	2	10	.	+	.	ID=exon3;parent=cds1
test_seq	.	CDS 	3	9	.	+	.	ID=cds3
test_seq	.	exon	12	20	.	+	.	ID=exon4;parent=cds1
test_seq	.	CDS	    4	10	.	+	.	ID=cds4
test_seq	.	CpG 	3	12	.	+	.	ID=CpG2
test_seq	.	mRNA	10	70	.	-	.	ID=Transcript:childless;Note=amx-2;Parent=parentless
test_seq	.	gene	1	100	.	-	.	ID=parentless

