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The complex heat sinks printed cools the electronic chip 45 % more efficiently than the commercial one .
 machine or equipment: heat sinks; material: chip
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: heat sinks, chip 
Answer:
 machine or equipment: heat sinks; material: chip