9240
The present method also identified the structural members that did not contribute to strength and rigidity , which in turn realized the appropriate weight savings and increased the specific strength and specific stiffness .
 machanical property: strength; process parameter: weight; machanical property: specific strength; machanical property: specific stiffness
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: strength, weight, specific strength, specific stiffness 
Answer:
 machanical property: strength; process parameter: weight; machanical property: specific strength; machanical property: specific stiffness