6153
It consists of fastening elements in which the two parts are pushed together , by means of a fit force , and no other fastener is necessary .
 material: elements; concept or principle: fit; machine or equipment: fastener
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: elements, fit, fastener 
Answer:
 material: elements; concept or principle: fit; machine or equipment: fastener