7

((((human: 0.029043, (chimpanzee: 0.014557, bonobo: 0.010908): 0.016729): 0.015344, gorilla: 0.033888): 0.033816, (orangutan: 0.026872, sumatran: 0.022437): 0.069648): 0.073309, gibbon: 0.024637);

((((human: 0.012463, (chimpanzee: 0.002782, bonobo: 0.003835): 0.003331): 0.004490, gorilla: 0.014278): 0.006308, (orangutan: 0.010818, sumatran: 0.008845): 0.030551): 0.004363, gibbon: 0.029246);

((((human: 0.270862, (chimpanzee: 0.066698, bonobo: 0.056883): 0.124104): 0.139082, gorilla: 0.310797): 0.391342, (orangutan: 0.152555, sumatran: 0.114176): 0.696518): 0.017607, gibbon: 1.394718);


//
There should be as many trees as the number of loci.  The tree is rooted but 
the two branch lengths around the root are summed up by the program after the 
branch lengths are read.