8529
Based on these results , a reinforcing mechanism of gelatinized starch based on interparticle and apatite crystal interlocking is proposed .
 concept or principle: mechanism; biomedical: starch; material: apatite
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: mechanism, starch, apatite 
Answer:
 concept or principle: mechanism; biomedical: starch; material: apatite