17717
Here we report that receptor proteins can be chemically tagged using a 5 - sulfonyl tetrazole probe .
 Chemical: 5 - sulfonyl tetrazole
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: 5 - sulfonyl tetrazole