1566
The disadvantage is similar to that of the process discuss earlier in terms of process control challenge due to too many parameters and also there is a material wastage .
 concept or principle: process; concept or principle: process control; concept or principle: parameters; material: material
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:
 concept or principle: process; concept or principle: process control; concept or principle: parameters; material: material