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In fact , no specific ISO-GPS or ASME-GD & T standard dedicated to AM processes exists , leaving design as a cumbersome process of defining geometrical requirements of assembly features or of single parts using a language dedicated to conventionally manufactured products .
 concept or principle: standard; manufacturing process: AM processes; engineering feature: design; material: as; concept or principle: process; manufacturing process: assembly; concept or principle: manufactured products
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: standard; manufacturing process: AM processes; engineering feature: design; material: as; concept or principle: process; manufacturing process: assembly; concept or principle: manufactured products