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In fact , United Kingdom law states the incident only has to happen twice when the harasser should be aware their behavior is unacceptable ( e.g. , two phone calls to a stranger , two gifts , following the victim then phoning them , etc ) .
 United Kingdom
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:
 United Kingdom