4700
Cadmium ( Cd ) affects the expression of estrogen receptor ( ER ) and aryl hydrocarbon receptor ( AhR ) - associated genes in rat uterus and elicits estrogen - like activity in vitro .
 Chemical: Cadmium; Chemical: Cd; Chemical: estrogen; Chemical: aryl hydrocarbon; Chemical: estrogen
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: Cadmium; Chemical: Cd; Chemical: estrogen; Chemical: aryl hydrocarbon; Chemical: estrogen