standard / high
Type III pattern in finding insertion. Tail segments (portions 1 and 4) are mapped next to each other on the reference.
The sequences of head segments (portions 2 and 3) belong to the inserted sequence.
Zhang et al. BMC Bioinformatics 2012 13(Suppl 6):S6 doi:10.1186/1471-2105-13-S6-S6