2072
These sand molds can improve production efficiency , and reduce deformation , residual stress and defects of castings .
 material: sand; machine or equipment: molds; manufacturing process: production; concept or principle: deformation; machanical property: residual stress; concept or principle: defects
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: sand, molds, production, deformation, residual stress, defects 
Answer:
 material: sand; machine or equipment: molds; manufacturing process: production; concept or principle: deformation; machanical property: residual stress; concept or principle: defects