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These five compounds ( 1 - 5 ) were isolated from the family Plantaginaceae for the first time ; the chemotaxonomic significance of cerebrosides was also discussed .
 Chemical: cerebrosides
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: cerebrosides