1843
Humans are exposed to parabens through the use of such products from dermal contact , ingestion , and inhalation .
 Chemical: parabens
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: parabens 
Answer:
 Chemical: parabens