2419
Immured within the lacunar - canalicular system and mineralized matrix , osteocytes are ideally located throughout the bone to detect the need for , and accordingly choreograph , the bone regeneration process by independently controlling rate limiting steps of bone resorption and formation .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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