18331
Colony forming assays indicated that LMW - TGA displayed superior antimicrobial activity over the other derivatives tested : a 30 min incubation killed 100 % Streptococcus sobrinus ( Gram - positive bacteria ) and reduced colony counts by 99 . 99 % in Neisseria subflava ( Gram - negative bacteria ) and 99 . 97 % in Candida albicans ( fungi ) .
 Chemical: TGA
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: TGA