4092
Less antibacterial activity was shown toward the Gram - negative bacilli , i . e . , Pseudomonas , Klebsiella - Enterobacter , Shigella , Escherichia coli , Serratia marcescens and Proteus .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities:  
Answer:
 None