4378
To identify potential key events in the mode of action of chloroprene lung tumorigenesis , dose - response and time - course gene expression microarray measurements were made in the lungs of female mice and female rats .
 Chemical: chloroprene
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: chloroprene