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The first method analyzed seven marker compounds simultaneously on a reversed - phase column , while the second method analyzed a single marker compound , conduritol F , which exists only in C . wilfordii , on a Si - column .
 Chemical: conduritol F; Chemical: Si
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: conduritol F; Chemical: Si