4967
Numerous studies have shown that H ( 2 ) S has vasodilator and antihypertensive effects in the cardiovascular system .
 Chemical: H ( 2 ) S
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: H ( 2 ) S