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A simple and effective method based on magnetic separation has been developed for the extraction of sulfonamides ( SAs ) from egg samples using magnetic multiwalled carbon nanotubes ( MMWCNTs ) as an adsorbent .
 Chemical: sulfonamides; Chemical: SAs; Chemical: carbon
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: sulfonamides; Chemical: SAs; Chemical: carbon