19890
Lower concentrations of Roundup ( 1 , 2 and 3mgae / L ) induced the formation of micronuclei ( MN ) in the erythrocytes of tadpoles at 24 - h ( F3 , 56 = 10 . 286 , p < 0 . 001 ) , 48 - h ( F3 , 56 = 48 . 255 , p < 0 . 001 ) , 72 - h ( F3 , 56 = 118 . 933 , p < 0 . 001 ) and 96 - h ( F3 , 56 = 85 . 414 , p < 0 . 001 ) in a concentration - dependent manner .
 Chemical: Roundup
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: Roundup