5794
It was found that for these laser parameters , while the material met ultimate tensile strength and yield strength requirements per AMS 5662 , the strain-to-failure was reduced with negative focus shift due to increases in porosity levels .
 enabling technology: laser; material: material; machanical property: ultimate tensile strength; machanical property: yield strength; machanical property: porosity
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: laser, material, ultimate tensile strength, yield strength, porosity 
Answer:
 enabling technology: laser; material: material; machanical property: ultimate tensile strength; machanical property: yield strength; machanical property: porosity