#NEXUS 
[The name of the file is G591 exercise.nex
    Type this in using the format shown.] 
BEGIN DATA; DIMENSIONS  NTAX=9 NCHAR=14; FORMAT MISSING=? GAP=- ;
 MATRIX 
   Sp.A   10000000000000 
   Sp.B   11110100000000 
   Sp.C   11111000000000  
   Sp.D   11100000000000  
   Sp.E   11100011110000  
   Sp.F   11000001110000 
   Sp.G   11001010001011  
   Sp.H   11000010000011 
   Sp.I   11000010001100
    ; 
   END;