#taxa	ExtNegative1
k__Bacteria;p__Firmicutes;c__Bacilli	4501
k__Bacteria;p__Firmicutes;c__Clostridia	6615
k__Bacteria;p__Proteobacteria;c__Betaproteobacteria	17861
k__Bacteria;p__Proteobacteria;c__Gammaproteobacteria	14997