1699
However , limited knowledge is available on direct comparison of additively manufactured porous Ta and Ti structures towards early stage osseointegration .
 manufacturing process: additively manufactured; material: Ta; material: Ti; machanical property: osseointegration
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: additively manufactured, Ta, Ti, osseointegration 
Answer:
 manufacturing process: additively manufactured; material: Ta; material: Ti; machanical property: osseointegration