Ключевые слова: agriculture, animal, animal husbandry, bellied, belly, black, black pig, boar, breed, close up, cute, dirty, domestic, domestic pig, farm, farming, fat, food, head, hog, household, large, livestock, mammal, meat, mud, nature, nose, one, outdoor, pet, pig, pig farming, piggy, piglet, pigs, porcine, pork, rural, sand, scent, small, sniff, snout, sow, vietnam, vietnamese, wild, yard, young,