An example of Adjacency Filtering with errors. An example of insertion tolerance. Because of an insertion on the 6th k-mer, the 6th k-mer becomes an edited k-mer and the mapper cannot find this k-mer's adjacent location. Even worse, the insertion also shifts all down stream k-mers to the left by 1-bp. However the 7th k-mer is still considered as a "correct k-mer" since it has location m+71, which is in the adjacent range [m+71, m+73], in its location list.
Xin et al. BMC Genomics 2013 14(Suppl 1):S13 doi:10.1186/1471-2164-14-S1-S13