957
Wire arc additive manufacturing ( WAAM ) techniques , although have lesser precision as compared to laser or electron beam techniques but have the advantage of lower cost and lesser time required .
 manufacturing process: Wire arc additive manufacturing; manufacturing process: WAAM; process characterization: precision; material: as; enabling technology: laser; concept or principle: electron beam
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: Wire arc additive manufacturing; manufacturing process: WAAM; process characterization: precision; material: as; enabling technology: laser; concept or principle: electron beam