1819
Likewise , on specifying a casting constraint , the bionic shape that is generated will be free of undercuts for easy extraction from the casting molds .
 manufacturing process: casting; material: be; engineering feature: undercuts; machine or equipment: casting molds
Please list all entity words in the text that fit the category.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} 
Answer:
 manufacturing process: casting; material: be; engineering feature: undercuts; machine or equipment: casting molds