7122
TEO did not produce any mutagenicity to Salmonella typhimurium TA - 98 , TA - 100 , TA - 102 and TA - 1535 with or without metabolic activation .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 None