97765
Multiple barriers , concertina wire , electrified fencing , secured and defensible main gates , armed guard towers , security lighting , motion sensors , dogs and roving patrols may all also be present depending on the level of security .
 dogs
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:
 dogs