137808
In 1984 , an American businessman Danny Douglas approached Czechoslovak authorities ( Embassy in Vienna ) with an offer to pay 250,000 USD for the right to excavate and export abroad an otherwise unidentified object “ which nobody here misses anyway ” .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None