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Naphtho [ 1 , 2 - b ] furan - 4 , 5 - dione ( NFD ) , a bioactive component of Avicennia marina , has been demonstrated to display anti - cancer activity .
 Chemical: Naphtho [ 1 , 2 - b ] furan - 4 , 5 - dione; Chemical: NFD
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: Naphtho [ 1 , 2 - b ] furan - 4 , 5 - dione; Chemical: NFD