If enough words are deleted from singleton patterns, like the ones shown in the examples in Table 6, the method for correspondence pattern recognition will assign them to the same clusters.
this is illustrated in Figure 2 where the cognate sets from table 1 are presented in aligned form, with zero-matches (gaps) being represented as a dash ("-"), and with brackets indicating unalignable parts in the sequences, that is, parts that cannot be aligned, since the differences are not due to regular sound change.