7669
Influence of sildenafil and tadalafil on the enzyme - and transporter - inducing effects of bosentan and ambrisentan in LS180 cells .
 Chemical: sildenafil; Chemical: bosentan; Chemical: ambrisentan
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: sildenafil, bosentan, ambrisentan 
Answer:
 Chemical: sildenafil; Chemical: bosentan; Chemical: ambrisentan