9418
Their results suggest that egg levels as low as 10 ng / g BDE - 99 may affect reproduction in small passerines by reducing clutch size .
 Chemical: BDE - 99
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: BDE - 99 
Answer:
 Chemical: BDE - 99