27590
The reactivity of bioglasses , which is related to the dissolution of cations and orthosilicate groups in the physiological fluid , strongly depends on the key structural features present at the glass surfaces .
 Chemical: orthosilicate
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: orthosilicate 
Answer:
 Chemical: orthosilicate