“…In [7], six levels of ambiguity of insertion-deletion systems have been defined and it is shown that there are inherently i-ambiguous insertion-deletion languages which are j-unambiguous for the combinations (i, j) ∈ {(5, 4), (4,2), (3,1), (3,2), (2, 1), (0, 1)}. Also, three new measures TLength-Con, TLength-Ins, TLength-Del are introduced and we discussed the trade-off between ambiguity and measures of insertion-deletion languages.…”