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Because GK contains polyacetylenes and because other polyacetylenes have been found to exhibit anti - inflammatory and anti - cancer activities , we hypothesized that the polyacetylene gymnasterkoreayne B ( GKB ) , known to increase hepatic detoxification enzymes , may also exert anti - inflammatory and anti - cancer activities .
 Chemical: polyacetylenes; Chemical: polyacetylenes; Chemical: polyacetylene; Chemical: gymnasterkoreayne B; Chemical: GKB
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: polyacetylenes; Chemical: polyacetylenes; Chemical: polyacetylene; Chemical: gymnasterkoreayne B; Chemical: GKB