Ключевые слова: arrest, background, bamboo, bar, barred, bird, birdcage, blue, break, cage, captivity, concept, conceptual, confined, detention, door, dove, empty, entry, escape, feather, flight, fly, free, freedom, gaol, hope, ideas, imprisonment, iron, jail, justice, law, liberated, liberty, lock, metal, open, peace, penitentiary, pets, prison, prisoner, safety, secure, security, sky, symbol, wing,