69675
A " vippefyr " or " bascule light " or " tipping lantern " was a type of small navigational aid popular in Denmark in the 18th century and before .
 Denmark
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Denmark