4961
Alachlor , which has demonstrated thyroid effects in mammals , may be largely responsible for the observed effects .
 Chemical: Alachlor
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: Alachlor 
Answer:
 Chemical: Alachlor