8789
Samples are designed and built in order to force heat flow only in one direction during thermal property measurement .
 concept or principle: Samples; engineering feature: designed; concept or principle: force; concept or principle: thermal property; process characterization: measurement
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: Samples, designed, force, thermal property, measurement 
Answer:
 concept or principle: Samples; engineering feature: designed; concept or principle: force; concept or principle: thermal property; process characterization: measurement