958
One of the biggest challenges SLS faces is lack of adequate process control , which leads to comparatively high component variations .
 manufacturing process: SLS; concept or principle: process control; machine or equipment: component
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: SLS, process control, component 
Answer:
 manufacturing process: SLS; concept or principle: process control; machine or equipment: component