#NEXUS
BEGIN TAXA;
    dimensions ntax=4;
    taxlabels A B C D;  
END;
BEGIN CHARACTERS;
    dimensions nchar=6;
    format
        datatype=standard missing=? gap=-;
    matrix
        A   011011
        B   001001
        C   001001
        D   011011
        ;
END;
BEGIN TREES;
[ this block is not complete ]
 TREE test_tree = (((A,B)node1,C)node2,D)root;
END;
BEGIN HISTORY;
[ this block is not complete ]
	title foo;
	dimensions ntax=4 nchar=6;
	format
		datatype=standard missing=? gap=- statesformat=frequency;
	matrix
        A       (0:1)(1:1)(1:1)(0:1)(1:1)(1:1)
        B       (0:1)(0:1)(1:1)(0:1)(0:1)(1:1)
        C       (0:1)(0:1)(1:1)(0:1)(0:1)(1:1)
        D       (0:1)(1:1)(1:1)(0:1)(1:1)(1:1)
        node1  (0:0.5 1:0.5)(0:0.4 1:0.6)(0:0.5 1:0.5)(0:0 0:1)(0:1 0:0)(0:0.1 1:0.9)
        node2  (0:0.5 1:0.5)(0:0.4 1:0.6)(0:0.5 1:0.5)(0:0 0:1)(0:1 0:0)(0:0.1 1:0.9)
        root    (0:0.5 1:0.5)(0:0.4 1:0.6)(0:0.5 1:0.5)(0:0 0:1)(0:1 0:0)(0:0.1 1:0.9)
 ;
 TREE test_tree = (((A,B)node1,C)node2,D)root;
END;