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A multi-layer conformal skin structure of the sensor was created using the soft molding process along with a highly flexible rubber material .
 concept or principle: structure; machine or equipment: sensor; manufacturing process: molding; material: rubber material
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: structure, sensor, molding, rubber material 
Answer:
 concept or principle: structure; machine or equipment: sensor; manufacturing process: molding; material: rubber material