6700
Titanium alloy Ti-6Al-4V showed higher overall or bulk absorption than the Inconel 625™ alloy .
 material: Titanium alloy; material: Ti-6Al-4V; concept or principle: absorption; material: Inconel; material: alloy
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: Titanium alloy, Ti-6Al-4V, absorption, Inconel, alloy 
Answer:
 material: Titanium alloy; material: Ti-6Al-4V; concept or principle: absorption; material: Inconel; material: alloy