4509
As altitude increases from the base plate , yield strength decreases from 681 MPa to 579 MPa and ultimate tensile strength from 791 MPa to 686 MPa .
 material: As; machanical property: yield strength; concept or principle: MPa; concept or principle: MPa; machanical property: ultimate tensile strength; concept or principle: MPa; concept or principle: MPa
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: As, yield strength, MPa, MPa, ultimate tensile strength, MPa, MPa 
Answer:
 material: As; machanical property: yield strength; concept or principle: MPa; concept or principle: MPa; machanical property: ultimate tensile strength; concept or principle: MPa; concept or principle: MPa