7303
In his mid 30s he discovered a way to weave the silk , to enable it to capture the bullet , while visiting weaving mills in Vienna , Austria , and Aachen , Germany .
 location: Vienna; location: Austria; location: Aachen; location: Germany
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Vienna; location: Austria; location: Aachen; location: Germany