1924
These statements have to be taken into account especially for smart AM advanced biodegradable implants that should degrade with spatial and temporal controllability to meet the requirements of different bone regeneration stages .
 material: be; manufacturing process: AM; application: implants; concept or principle: bone regeneration
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 material: be; manufacturing process: AM; application: implants; concept or principle: bone regeneration