Ключевые слова: america, american, background, banner, business, celebration, communist, day, demonstration, design, employers, engineer, event, festival, flag, freedom, graphic, hand, happy, hardhat, holding, holiday, illustration, industrial, international, isolated, job, labor, labour, man, may, national, patriot, political, poster, public, red, revolution, rights, social, society, strong, union, usa, vector, waving, wide, work, worker, workers,