PostScript output is available.
Only sequences of alphabetical characters or of a specified alphabet are processed, all other lines are ignored. The program stops reading if it either encounters an EOF condition, or if there are no valid sequence data between two lines beginning with separator characters. A list of taxa names can be specified in the input stream. Taxon', where x is the number of taxon, i.e., of the corresponding entry in the list of input sequences. The taxa list need not be complete.