1##gff-version 3 2seq1 synthetic1 sequence_feature 5 15 . . . ID=basic1 3seq1 synthetic1 sequence_feature 5 15 . . . ID=discontig1 4seq1 synthetic1 sequence_feature 20 30 . . . ID=discontig1 5seq1 synthetic1 sequence_feature 5 15 . . . ID=perfect_overlap1 6seq1 synthetic1 sequence_feature 16 20 . . . ID=adjacent1 7seq1 synthetic1 sequence_feature 16 16 . . . ID=adjacent2 8seq1 synthetic1 sequence_feature 1 4 . . . ID=adjacent3 9seq1 synthetic1 sequence_feature 4 4 . . . ID=adjacent4 10seq1 synthetic1 sequence_feature 15 20 . . . ID=overlap_end1 11seq1 synthetic1 sequence_feature 1 5 . . . ID=overlap_start1 12seq1 synthetic1 sequence_feature 10 20 . . . ID=overlap_past_end1 13seq1 synthetic1 sequence_feature 10 20 . + . ID=strand_plus1 14seq1 synthetic1 sequence_feature 10 20 . - . ID=strand_minus1 15seq1 synthetic1 sequence_feature 35 40 . . . ID=no_overlap1 16seq1 synthetic1 sequence_feature 21 29 . . . ID=no_overlap2 17seq1 synthetic1 misc_feature 1 10 . . . ID=different_type1 18seq1 synthetic2 sequence_feature 1 10 . . . ID=different_source1 19seq2 synthetic1 sequence_feature 1 10 . . . ID=different_seqid1