1412
VAL / HCTZ 320 / 12 . 5 and 320 / 25 mg were further investigated in a 54 - week , open - label extension .
 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:
 Chemical: VAL; Chemical: HCTZ