Ключевые слова: architect, black, builder, building, business, businessman, construction, constructor, contractor, design, engineer, engineering, equipment, glasses, hand, hardhat, hat, helmet, holding, indenture, industrial, industry, inspector, isolated, job, male, man, management, manager, occupation, plastic, profession, professional, project, protect, protection, safety, security, soft, suit, supervisor, technician, white, work, worker, yellow,