1410
Patients with essential hypertension ( mean sitting diastolic BP [ MSDBP ] , > or = 95 mm Hg and < 110 mm Hg ) were randomized to 1 of 8 treatment groups : VAL 160 or 320 mg ; HCTZ 12 . 5 or 25 mg ; VAL / HCTZ 160 / 12 . 5 , 320 / 12 . 5 , or 320 / 25 mg ; or placebo .
 Disease: essential hypertension; Chemical: VAL; Chemical: HCTZ; Chemical: VAL; Chemical: HCTZ
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Disease: essential hypertension; Chemical: VAL; Chemical: HCTZ; Chemical: VAL; Chemical: HCTZ