#NEXUS begin taxa; dimensions ntax=3; taxlabels taxon_1 taxon_2 taxon_3; end; ['Characters' block from Maddison et al. 1997, p. 603 right column, above] [this file has double-quotes around the symbols list] begin characters; dimensions nchar=9; format symbols="- + x"; matrix taxon_1 (-+)(-+)+---+-- taxon_2 +x-++--+x taxon_3 -++++--+x; end;