18252
Based on our previously published work on CXCR4 antagonists , we have synthesized a series of aryl sulfonamides that inhibit the CXCR4 / CXCL12 interaction .
 Chemical: aryl sulfonamides
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: aryl sulfonamides