7059
Not long after the last elk was killed in Pennsylvania , federal officials , worried about mushrooming elk herds in and around Yellowstone National Park , offered the animals to anyone willing to take them .
 location: Pennsylvania; location: Yellowstone National Park
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Pennsylvania; location: Yellowstone National Park