10427
Synthesis and biological activity against Trypanosoma cruzi of substituted 1 , 4 - naphthoquinones .
 Chemical: 1 , 4 - naphthoquinones
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: 1 , 4 - naphthoquinones