4577
Direct deposition of Ti64 was successful only for a couple of layers before the structures were delaminated .
 concept or principle: deposition; material: Ti64
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: deposition, Ti64 
Answer:
 concept or principle: deposition; material: Ti64