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This work investigates the effect of feature size on the stochastic mechanical performance of laser powder bed fusion tensile specimens .
 concept or principle: investigates; process parameter: feature size; concept or principle: stochastic; application: mechanical; manufacturing process: laser powder bed fusion
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: investigates, feature size, stochastic, mechanical, laser powder bed fusion 
Answer:
 concept or principle: investigates; process parameter: feature size; concept or principle: stochastic; application: mechanical; manufacturing process: laser powder bed fusion