4001
A total of 38 consecutive patients who presented to our clinic with impotence received 0 . 2 ml . of a combination of 3 drugs : 6 mg . papaverine , 100 micrograms . phentolamine and 10 micrograms . prostaglandin E1 with ( pH 7 . 05 ) or without ( pH 4 . 17 ) the addition of sodium bicarbonate ( 0 . 03 mEq . ) .
 Disease: impotence; Chemical: papaverine; Chemical: phentolamine; Chemical: prostaglandin E1; Chemical: sodium bicarbonate
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: impotence, papaverine, phentolamine, prostaglandin E1, sodium bicarbonate 
Answer:
 Disease: impotence; Chemical: papaverine; Chemical: phentolamine; Chemical: prostaglandin E1; Chemical: sodium bicarbonate