Determine decision tree of the following organisms and what gram will it be,

wing: How to determine decision tree in micro-la to find unknown organism. Steps of the folk Gram (-) Bacillus J Urea Citrobacteraf Klebsiella pneumoniae Klebsiella aerogenes Escherichia col Providencia Stuarti Pseudomonas aeruginosa Pseudomonas fluorescens Salmonella enteritidis Shigella flexneri Alcaligenes faecalis + methyl red C-freundi K-pneumoniae E.coli P.stuart; S. enteritids Sflexneri 1 - K. aerogenes Praeroginosa P. fluorescens R. faecalis Nitrate Pifluorescens MacConkey Agar A. faecalis A focalis motility Pfluorescen + Proteus mirabilis Proteus vulgaris citrate P. vulgaris. 7+ P.Mirabilis 1+ Kaerogenes P. aeruginosa V okidose -[ Paeruginosa Kaerogenes