seq . transcript 1050 9000 . + . ID=transcript1;Name=Transcript1
seq . transcript 3500 8500 . - . ID=transcript2;Name=Transcript2
seq . utr 1050 1200 . . . ID=utr1;Parent=transcript1
seq . CDS 1201 3200 . + . ID=cds1;Parent=transcript1
seq . CDS 4150 5700 . + . ID=cds1;Parent=transcript1
seq . CDS 7200 8100 . + . ID=cds1;Parent=transcript1
seq . utr 8101 9000 . . . ID=utr2;Parent=transcript1
seq . utr 3500 4000 . . . ID=utr3;Parent=transcript2
seq . CDS 4001 6200 . - . ID=cds2;Parent=transcript2
seq . CDS 7100 7900 . - . ID=cds2;Parent=transcript2
seq . CDS 8100 8400 . - . ID=cds2;Parent=transcript2
seq . utr 8401 8500 . . . ID=utr4;Parent=transcript2