97140
At that time he founded in Germany a steel company that after a number of name changes in 1870 became known as Rheinische Stahlwerks , where he served as president until 1878 .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None