9976
Although it has been suggested that high - resolution computed tomography ( HRCT ) scans can be obtained when plain radiographs are equivocal for the presence of interstitial lung fibrosis ( ILF ) caused by inhalation of dust , such as silica , asbestos fibres , etc . , the specificity of the findings remains in question .
 Chemical: silica; Chemical: asbestos
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: silica; Chemical: asbestos