22701
Fourteen of 17 parabens exhibited hER alpha and / or hER beta agonistic activity at concentrations of >= 1 x 10 ( - 5 ) M , whereas none of the 17 parabens showed AR agonistic or antagonistic activity .
 Chemical: parabens; Chemical: parabens
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: parabens; Chemical: parabens