#NEXUS
BEGIN TAXA;
    Dimensions NTax = 5;
    TaxLabels 'Polioptila caerulea' 'Polioptila albiloris' 'Polioptila nigriceps' 'Polioptila californica' 'Polioptila melanura' ;
END;
BEGIN TREES;
    Tree tree1 = ('Polioptila caerulea',('Polioptila albiloris',('Polioptila nigriceps',('Polioptila californica','Polioptila melanura'))));
END;