201855
The viewing tower is the oldest stone one in Jeseníky mountains , it was built of stone in 1898 by the German tourist association MSSGV on the occasion of 50 years of the reign of Franz Joseph I and it is 18 m high .
 Franz Joseph I
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Franz Joseph I