1949
There has been extensive exploration of TO for AM in diverse application examples either via standard TO tools or AM oriented tools .
 manufacturing process: AM; concept or principle: standard; machine or equipment: tools; manufacturing process: AM; machine or equipment: tools
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: AM; concept or principle: standard; machine or equipment: tools; manufacturing process: AM; machine or equipment: tools